diff --git a/dox/doxyfile_ru b/dox/doxyfile_ru
index ad223f6..c2678c9 100644
--- a/dox/doxyfile_ru
+++ b/dox/doxyfile_ru
@@ -1,4 +1,4 @@
-# Doxyfile 1.8.10
+# Doxyfile 1.8.15
 
 # This file describes the settings to be used by the documentation system
 # doxygen (www.doxygen.org) for a project.
@@ -17,11 +17,11 @@
 # Project related configuration options
 #---------------------------------------------------------------------------
 
-# This tag specifies the encoding used for all characters in the config file
-# that follow. The default is UTF-8 which is also the encoding used for all text
-# before the first occurrence of this tag. Doxygen uses libiconv (or the iconv
-# built into libc) for the transcoding. See http://www.gnu.org/software/libiconv
-# for the list of possible encodings.
+# This tag specifies the encoding used for all characters in the configuration
+# file that follow. The default is UTF-8 which is also the encoding used for all
+# text before the first occurrence of this tag. Doxygen uses libiconv (or the
+# iconv built into libc) for the transcoding. See
+# https://www.gnu.org/software/libiconv/ for the list of possible encodings.
 # The default value is: UTF-8.
 
 DOXYFILE_ENCODING      = UTF-8
@@ -32,13 +32,13 @@ DOXYFILE_ENCODING      = UTF-8
 # title of most generated pages and in a few other places.
 # The default value is: My Project.
 
-PROJECT_NAME           = 
+PROJECT_NAME           = libdspl-2.0
 
 # The PROJECT_NUMBER tag can be used to enter a project or revision number. This
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 
+PROJECT_NUMBER         =
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
@@ -93,6 +93,14 @@ ALLOW_UNICODE_NAMES    = YES
 
 OUTPUT_LANGUAGE        = Russian
 
+# The OUTPUT_TEXT_DIRECTION tag is used to specify the direction in which all
+# documentation generated by doxygen is written. Doxygen will use this
+# information to generate all generated output in the proper direction.
+# Possible values are: None, LTR, RTL and Context.
+# The default value is: None.
+
+OUTPUT_TEXT_DIRECTION  = None
+
 # If the BRIEF_MEMBER_DESC tag is set to YES, doxygen will include brief member
 # descriptions after the members that are listed in the file and class
 # documentation (similar to Javadoc). Set to NO to disable this.
@@ -135,7 +143,7 @@ ABBREVIATE_BRIEF       = "The $name class" \
 # description.
 # The default value is: NO.
 
-ALWAYS_DETAILED_SEC    = NO
+ALWAYS_DETAILED_SEC    = YES
 
 # If the INLINE_INHERITED_MEMB tag is set to YES, doxygen will show all
 # inherited members of a class in the documentation of that class as if those
@@ -162,7 +170,7 @@ FULL_PATH_NAMES        = YES
 # will be relative from the directory where doxygen is started.
 # This tag requires that the tag FULL_PATH_NAMES is set to YES.
 
-STRIP_FROM_PATH        = 
+STRIP_FROM_PATH        =
 
 # The STRIP_FROM_INC_PATH tag can be used to strip a user-defined part of the
 # path mentioned in the documentation of a class, which tells the reader which
@@ -171,7 +179,7 @@ STRIP_FROM_PATH        =
 # specify the list of include paths that are normally passed to the compiler
 # using the -I flag.
 
-STRIP_FROM_INC_PATH    = 
+STRIP_FROM_INC_PATH    =
 
 # If the SHORT_NAMES tag is set to YES, doxygen will generate much shorter (but
 # less readable) file names. This can be useful is your file systems doesn't
@@ -236,15 +244,20 @@ TAB_SIZE               = 2
 # will allow you to put the command \sideeffect (or @sideeffect) in the
 # documentation, which will result in a user-defined paragraph with heading
 # "Side Effects:". You can put \n's in the value part of an alias to insert
-# newlines.
+# newlines (in the resulting output). You can put ^^ in the value part of an
+# alias to insert a newline as if a physical newline was in the original file.
+# When you need a literal { or } or , in the value part of an alias you have to
+# escape them by means of a backslash (\), this can lead to conflicts with the
+# commands \{ and \} for these it is advised to use the version @{ and @} or use
+# a double escape (\\{ and \\})
 
-ALIASES                = 
+ALIASES                =
 
 # This tag can be used to specify a number of word-keyword mappings (TCL only).
 # A mapping has the form "name=value". For example adding "class=itcl::class"
 # will allow you to use the command class in the itcl::class meaning.
 
-TCL_SUBST              = 
+TCL_SUBST              =
 
 # Set the OPTIMIZE_OUTPUT_FOR_C tag to YES if your project consists of C sources
 # only. Doxygen will then generate output that is more tailored for C. For
@@ -274,28 +287,37 @@ OPTIMIZE_FOR_FORTRAN   = NO
 
 OPTIMIZE_OUTPUT_VHDL   = NO
 
+# Set the OPTIMIZE_OUTPUT_SLICE tag to YES if your project consists of Slice
+# sources only. Doxygen will then generate output that is more tailored for that
+# language. For instance, namespaces will be presented as modules, types will be
+# separated into more groups, etc.
+# The default value is: NO.
+
+OPTIMIZE_OUTPUT_SLICE  = NO
+
 # Doxygen selects the parser to use depending on the extension of the files it
 # parses. With this tag you can assign which parser to use for a given
 # extension. Doxygen has a built-in mapping, but you can override or extend it
 # using this tag. The format is ext=language, where ext is a file extension, and
 # language is one of the parsers supported by doxygen: IDL, Java, Javascript,
-# C#, C, C++, D, PHP, Objective-C, Python, Fortran (fixed format Fortran:
-# FortranFixed, free formatted Fortran: FortranFree, unknown formatted Fortran:
-# Fortran. In the later case the parser tries to guess whether the code is fixed
-# or free formatted code, this is the default for Fortran type files), VHDL. For
-# instance to make doxygen treat .inc files as Fortran files (default is PHP),
-# and .f files as C (default is Fortran), use: inc=Fortran f=C.
+# Csharp (C#), C, C++, D, PHP, md (Markdown), Objective-C, Python, Slice,
+# Fortran (fixed format Fortran: FortranFixed, free formatted Fortran:
+# FortranFree, unknown formatted Fortran: Fortran. In the later case the parser
+# tries to guess whether the code is fixed or free formatted code, this is the
+# default for Fortran type files), VHDL, tcl. For instance to make doxygen treat
+# .inc files as Fortran files (default is PHP), and .f files as C (default is
+# Fortran), use: inc=Fortran f=C.
 #
 # Note: For files without extension you can use no_extension as a placeholder.
 #
 # Note that for custom extensions you also need to set FILE_PATTERNS otherwise
 # the files are not read by doxygen.
 
-EXTENSION_MAPPING      = 
+EXTENSION_MAPPING      =
 
 # If the MARKDOWN_SUPPORT tag is enabled then doxygen pre-processes all comments
 # according to the Markdown format, which allows for more readable
-# documentation. See http://daringfireball.net/projects/markdown/ for details.
+# documentation. See https://daringfireball.net/projects/markdown/ for details.
 # The output of markdown processing is further processed by doxygen, so you can
 # mix doxygen, HTML, and XML commands with Markdown formatting. Disable only in
 # case of backward compatibilities issues.
@@ -303,6 +325,15 @@ EXTENSION_MAPPING      =
 
 MARKDOWN_SUPPORT       = YES
 
+# When the TOC_INCLUDE_HEADINGS tag is set to a non-zero value, all headings up
+# to that level are automatically included in the table of contents, even if
+# they do not have an id attribute.
+# Note: This feature currently applies only to Markdown headings.
+# Minimum value: 0, maximum value: 99, default value: 0.
+# This tag requires that the tag MARKDOWN_SUPPORT is set to YES.
+
+TOC_INCLUDE_HEADINGS   = 0
+
 # When enabled doxygen tries to link words that correspond to documented
 # classes, or namespaces to their corresponding documentation. Such a link can
 # be prevented in individual cases by putting a % sign in front of the word or
@@ -328,7 +359,7 @@ BUILTIN_STL_SUPPORT    = NO
 CPP_CLI_SUPPORT        = NO
 
 # Set the SIP_SUPPORT tag to YES if your project consists of sip (see:
-# http://www.riverbankcomputing.co.uk/software/sip/intro) sources only. Doxygen
+# https://www.riverbankcomputing.com/software/sip/intro) sources only. Doxygen
 # will parse them like normal C++ but will assume all classes use public instead
 # of private inheritance when no explicit protection keyword is present.
 # The default value is: NO.
@@ -639,7 +670,7 @@ GENERATE_DEPRECATEDLIST= YES
 # sections, marked by \if <section_label> ... \endif and \cond <section_label>
 # ... \endcond blocks.
 
-ENABLED_SECTIONS       = 
+ENABLED_SECTIONS       =
 
 # The MAX_INITIALIZER_LINES tag determines the maximum number of lines that the
 # initial value of a variable or macro / define can have for it to appear in the
@@ -681,7 +712,7 @@ SHOW_NAMESPACES        = YES
 # by doxygen. Whatever the program writes to standard output is used as the file
 # version. For an example see the documentation.
 
-FILE_VERSION_FILTER    = 
+FILE_VERSION_FILTER    =
 
 # The LAYOUT_FILE tag can be used to specify a layout file which will be parsed
 # by doxygen. The layout file controls the global structure of the generated
@@ -694,17 +725,17 @@ FILE_VERSION_FILTER    =
 # DoxygenLayout.xml, doxygen will parse it automatically even if the LAYOUT_FILE
 # tag is left empty.
 
-LAYOUT_FILE            = 
+LAYOUT_FILE            =
 
 # The CITE_BIB_FILES tag can be used to specify one or more bib files containing
 # the reference definitions. This must be a list of .bib files. The .bib
 # extension is automatically appended if omitted. This requires the bibtex tool
-# to be installed. See also http://en.wikipedia.org/wiki/BibTeX for more info.
+# to be installed. See also https://en.wikipedia.org/wiki/BibTeX for more info.
 # For LaTeX the style of the bibliography can be controlled using
 # LATEX_BIB_STYLE. To use this feature you need bibtex and perl available in the
 # search path. See also \cite for info how to create references.
 
-CITE_BIB_FILES         = 
+CITE_BIB_FILES         =
 
 #---------------------------------------------------------------------------
 # Configuration options related to warning and progress messages
@@ -744,11 +775,18 @@ WARN_IF_DOC_ERROR      = YES
 # This WARN_NO_PARAMDOC option can be enabled to get warnings for functions that
 # are documented, but have no documentation for their parameters or return
 # value. If set to NO, doxygen will only warn about wrong or incomplete
-# parameter documentation, but not about the absence of documentation.
+# parameter documentation, but not about the absence of documentation. If
+# EXTRACT_ALL is set to YES then this flag will automatically be disabled.
 # The default value is: NO.
 
 WARN_NO_PARAMDOC       = NO
 
+# If the WARN_AS_ERROR tag is set to YES then doxygen will immediately stop when
+# a warning is encountered.
+# The default value is: NO.
+
+WARN_AS_ERROR          = NO
+
 # The WARN_FORMAT tag determines the format of the warning messages that doxygen
 # can produce. The string should contain the $file, $line, and $text tags, which
 # will be replaced by the file and line number from which the warning originated
@@ -763,7 +801,7 @@ WARN_FORMAT            = "$file:$line: $text"
 # messages should be written. If left blank the output is written to standard
 # error (stderr).
 
-WARN_LOGFILE           = 
+WARN_LOGFILE           =
 
 #---------------------------------------------------------------------------
 # Configuration options related to the input files
@@ -786,7 +824,7 @@ INPUT                  = ru \
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
 # libiconv (or the iconv built into libc) for the transcoding. See the libiconv
-# documentation (see: http://www.gnu.org/software/libiconv) for the list of
+# documentation (see: https://www.gnu.org/software/libiconv/) for the list of
 # possible encodings.
 # The default value is: UTF-8.
 
@@ -803,8 +841,8 @@ INPUT_ENCODING         = UTF-8
 # If left blank the following patterns are tested:*.c, *.cc, *.cxx, *.cpp,
 # *.c++, *.java, *.ii, *.ixx, *.ipp, *.i++, *.inl, *.idl, *.ddl, *.odl, *.h,
 # *.hh, *.hxx, *.hpp, *.h++, *.cs, *.d, *.php, *.php4, *.php5, *.phtml, *.inc,
-# *.m, *.markdown, *.md, *.mm, *.dox, *.py, *.f90, *.f, *.for, *.tcl, *.vhd,
-# *.vhdl, *.ucf, *.qsf, *.as and *.js.
+# *.m, *.markdown, *.md, *.mm, *.dox, *.py, *.pyw, *.f90, *.f95, *.f03, *.f08,
+# *.f, *.for, *.tcl, *.vhd, *.vhdl, *.ucf, *.qsf and *.ice.
 
 FILE_PATTERNS          = *.c \
                          *.cc \
@@ -864,7 +902,7 @@ RECURSIVE              = YES
 # Note that relative paths are relative to the directory from which doxygen is
 # run.
 
-EXCLUDE                = 
+EXCLUDE                =
 
 # The EXCLUDE_SYMLINKS tag can be used to select whether or not files or
 # directories that are symbolic links (a Unix file system feature) are excluded
@@ -880,7 +918,7 @@ EXCLUDE_SYMLINKS       = NO
 # Note that the wildcards are matched against the file with absolute path, so to
 # exclude all test directories for example use the pattern */test/*
 
-EXCLUDE_PATTERNS       = 
+EXCLUDE_PATTERNS       =
 
 # The EXCLUDE_SYMBOLS tag can be used to specify one or more symbol names
 # (namespaces, classes, functions, etc.) that should be excluded from the
@@ -891,7 +929,7 @@ EXCLUDE_PATTERNS       =
 # Note that the wildcards are matched against the file with absolute path, so to
 # exclude all test directories use the pattern */test/*
 
-EXCLUDE_SYMBOLS        = 
+EXCLUDE_SYMBOLS        =
 
 # The EXAMPLE_PATH tag can be used to specify one or more files or directories
 # that contain example code fragments that are included (see the \include
@@ -937,8 +975,12 @@ IMAGE_PATH             = ru/img \
 # Note that the filter must not add or remove lines; it is applied before the
 # code is scanned, but not when the output code is generated. If lines are added
 # or removed, the anchors will not be placed correctly.
+#
+# Note that for custom extensions or not directly supported extensions you also
+# need to set EXTENSION_MAPPING for the extension otherwise the files are not
+# properly processed by doxygen.
 
-INPUT_FILTER           = 
+INPUT_FILTER           =
 
 # The FILTER_PATTERNS tag can be used to specify filters on a per file pattern
 # basis. Doxygen will compare the file name with each pattern and apply the
@@ -946,8 +988,12 @@ INPUT_FILTER           =
 # (like *.cpp=my_cpp_filter). See INPUT_FILTER for further information on how
 # filters are used. If the FILTER_PATTERNS tag is empty or if none of the
 # patterns match the file name, INPUT_FILTER is applied.
+#
+# Note that for custom extensions or not directly supported extensions you also
+# need to set EXTENSION_MAPPING for the extension otherwise the files are not
+# properly processed by doxygen.
 
-FILTER_PATTERNS        = 
+FILTER_PATTERNS        =
 
 # If the FILTER_SOURCE_FILES tag is set to YES, the input filter (if set using
 # INPUT_FILTER) will also be used to filter the input files that are used for
@@ -962,14 +1008,14 @@ FILTER_SOURCE_FILES    = NO
 # *.ext= (so without naming a filter).
 # This tag requires that the tag FILTER_SOURCE_FILES is set to YES.
 
-FILTER_SOURCE_PATTERNS = 
+FILTER_SOURCE_PATTERNS =
 
 # If the USE_MDFILE_AS_MAINPAGE tag refers to the name of a markdown file that
 # is part of the input, its contents will be placed on the main page
 # (index.html). This can be useful if you have a project on for instance GitHub
 # and want to reuse the introduction page also for the doxygen output.
 
-USE_MDFILE_AS_MAINPAGE = 
+USE_MDFILE_AS_MAINPAGE =
 
 #---------------------------------------------------------------------------
 # Configuration options related to source browsing
@@ -998,7 +1044,7 @@ INLINE_SOURCES         = NO
 STRIP_CODE_COMMENTS    = YES
 
 # If the REFERENCED_BY_RELATION tag is set to YES then for each documented
-# function all documented functions referencing it will be listed.
+# entity all documented functions referencing it will be listed.
 # The default value is: NO.
 
 REFERENCED_BY_RELATION = YES
@@ -1030,12 +1076,12 @@ SOURCE_TOOLTIPS        = YES
 # If the USE_HTAGS tag is set to YES then the references to source code will
 # point to the HTML generated by the htags(1) tool instead of doxygen built-in
 # source browser. The htags tool is part of GNU's global source tagging system
-# (see http://www.gnu.org/software/global/global.html). You will need version
+# (see https://www.gnu.org/software/global/global.html). You will need version
 # 4.8.6 or higher.
 #
 # To use it do the following:
 # - Install the latest version of global
-# - Enable SOURCE_BROWSER and USE_HTAGS in the config file
+# - Enable SOURCE_BROWSER and USE_HTAGS in the configuration file
 # - Make sure the INPUT points to the root of the source tree
 # - Run doxygen as normal
 #
@@ -1063,7 +1109,7 @@ VERBATIM_HEADERS       = YES
 # rich C++ code for which doxygen's built-in parser lacks the necessary type
 # information.
 # Note: The availability of this option depends on whether or not doxygen was
-# compiled with the --with-libclang option.
+# generated with the -Duse_libclang=ON option for CMake.
 # The default value is: NO.
 
 CLANG_ASSISTED_PARSING = NO
@@ -1074,7 +1120,17 @@ CLANG_ASSISTED_PARSING = NO
 # specified with INPUT and INCLUDE_PATH.
 # This tag requires that the tag CLANG_ASSISTED_PARSING is set to YES.
 
-CLANG_OPTIONS          = 
+CLANG_OPTIONS          =
+
+# If clang assisted parsing is enabled you can provide the clang parser with the
+# path to the compilation database (see:
+# http://clang.llvm.org/docs/HowToSetupToolingForLLVM.html) used when the files
+# were built. This is equivalent to specifying the "-p" option to a clang tool,
+# such as clang-check. These options will then be passed to the parser.
+# Note: The availability of this option depends on whether or not doxygen was
+# generated with the -Duse_libclang=ON option for CMake.
+
+CLANG_DATABASE_PATH    =
 
 #---------------------------------------------------------------------------
 # Configuration options related to the alphabetical class index
@@ -1100,7 +1156,7 @@ COLS_IN_ALPHA_INDEX    = 5
 # while generating the index headers.
 # This tag requires that the tag ALPHABETICAL_INDEX is set to YES.
 
-IGNORE_PREFIX          = 
+IGNORE_PREFIX          =
 
 #---------------------------------------------------------------------------
 # Configuration options related to the HTML output
@@ -1179,7 +1235,7 @@ HTML_STYLESHEET        = doxy_stylesheet.css
 # list). For an example see the documentation.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-HTML_EXTRA_STYLESHEET  = 
+HTML_EXTRA_STYLESHEET  =
 
 # The HTML_EXTRA_FILES tag can be used to specify one or more extra images or
 # other source files which should be copied to the HTML output directory. Note
@@ -1189,12 +1245,12 @@ HTML_EXTRA_STYLESHEET  =
 # files will be copied as-is; there are no commands or markers available.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
-HTML_EXTRA_FILES       = 
+HTML_EXTRA_FILES       =
 
 # The HTML_COLORSTYLE_HUE tag controls the color of the HTML output. Doxygen
 # will adjust the colors in the style sheet and background images according to
 # this color. Hue is specified as an angle on a colorwheel, see
-# http://en.wikipedia.org/wiki/Hue for more information. For instance the value
+# https://en.wikipedia.org/wiki/Hue for more information. For instance the value
 # 0 represents red, 60 is yellow, 120 is green, 180 is cyan, 240 is blue, 300
 # purple, and 360 is red again.
 # Minimum value: 0, maximum value: 359, default value: 220.
@@ -1230,6 +1286,17 @@ HTML_COLORSTYLE_GAMMA  = 80
 
 HTML_TIMESTAMP         = YES
 
+# If the HTML_DYNAMIC_MENUS tag is set to YES then the generated HTML
+# documentation will contain a main index with vertical navigation menus that
+# are dynamically created via Javascript. If disabled, the navigation index will
+# consists of multiple levels of tabs that are statically embedded in every HTML
+# page. Disable this option to support browsers that do not have Javascript,
+# like the Qt help browser.
+# The default value is: YES.
+# This tag requires that the tag GENERATE_HTML is set to YES.
+
+HTML_DYNAMIC_MENUS     = YES
+
 # If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
 # documentation will contain sections that can be hidden and shown after the
 # page has loaded.
@@ -1253,13 +1320,13 @@ HTML_INDEX_NUM_ENTRIES = 100
 
 # If the GENERATE_DOCSET tag is set to YES, additional index files will be
 # generated that can be used as input for Apple's Xcode 3 integrated development
-# environment (see: http://developer.apple.com/tools/xcode/), introduced with
-# OSX 10.5 (Leopard). To create a documentation set, doxygen will generate a
+# environment (see: https://developer.apple.com/xcode/), introduced with OSX
+# 10.5 (Leopard). To create a documentation set, doxygen will generate a
 # Makefile in the HTML output directory. Running make will produce the docset in
 # that directory and running make install will install the docset in
 # ~/Library/Developer/Shared/Documentation/DocSets so that Xcode will find it at
-# startup. See http://developer.apple.com/tools/creatingdocsetswithdoxygen.html
-# for more information.
+# startup. See https://developer.apple.com/library/archive/featuredarticles/Doxy
+# genXcode/_index.html for more information.
 # The default value is: NO.
 # This tag requires that the tag GENERATE_HTML is set to YES.
 
@@ -1298,7 +1365,7 @@ DOCSET_PUBLISHER_NAME  = Publisher
 # If the GENERATE_HTMLHELP tag is set to YES then doxygen generates three
 # additional HTML index files: index.hhp, index.hhc, and index.hhk. The
 # index.hhp is a project file that can be read by Microsoft's HTML Help Workshop
-# (see: http://www.microsoft.com/en-us/download/details.aspx?id=21138) on
+# (see: https://www.microsoft.com/en-us/download/details.aspx?id=21138) on
 # Windows.
 #
 # The HTML Help Workshop contains a compiler that can convert all HTML output
@@ -1318,7 +1385,7 @@ GENERATE_HTMLHELP      = NO
 # written to the html output directory.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
-CHM_FILE               = 
+CHM_FILE               =
 
 # The HHC_LOCATION tag can be used to specify the location (absolute path
 # including file name) of the HTML help compiler (hhc.exe). If non-empty,
@@ -1326,7 +1393,7 @@ CHM_FILE               =
 # The file has to be specified with full path.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
-HHC_LOCATION           = 
+HHC_LOCATION           =
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated
 # (YES) or that it should be included in the master .chm file (NO).
@@ -1339,7 +1406,7 @@ GENERATE_CHI           = NO
 # and project file content.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
-CHM_INDEX_ENCODING     = 
+CHM_INDEX_ENCODING     =
 
 # The BINARY_TOC flag controls whether a binary table of contents is generated
 # (YES) or a normal table of contents (NO) in the .chm file. Furthermore it
@@ -1370,11 +1437,11 @@ GENERATE_QHP           = NO
 # the HTML output folder.
 # This tag requires that the tag GENERATE_QHP is set to YES.
 
-QCH_FILE               = 
+QCH_FILE               =
 
 # The QHP_NAMESPACE tag specifies the namespace to use when generating Qt Help
 # Project output. For more information please see Qt Help Project / Namespace
-# (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#namespace).
+# (see: http://doc.qt.io/archives/qt-4.8/qthelpproject.html#namespace).
 # The default value is: org.doxygen.Project.
 # This tag requires that the tag GENERATE_QHP is set to YES.
 
@@ -1382,7 +1449,7 @@ QHP_NAMESPACE          = org.doxygen.Project
 
 # The QHP_VIRTUAL_FOLDER tag specifies the namespace to use when generating Qt
 # Help Project output. For more information please see Qt Help Project / Virtual
-# Folders (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#virtual-
+# Folders (see: http://doc.qt.io/archives/qt-4.8/qthelpproject.html#virtual-
 # folders).
 # The default value is: doc.
 # This tag requires that the tag GENERATE_QHP is set to YES.
@@ -1391,33 +1458,33 @@ QHP_VIRTUAL_FOLDER     = doc
 
 # If the QHP_CUST_FILTER_NAME tag is set, it specifies the name of a custom
 # filter to add. For more information please see Qt Help Project / Custom
-# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# Filters (see: http://doc.qt.io/archives/qt-4.8/qthelpproject.html#custom-
 # filters).
 # This tag requires that the tag GENERATE_QHP is set to YES.
 
-QHP_CUST_FILTER_NAME   = 
+QHP_CUST_FILTER_NAME   =
 
 # The QHP_CUST_FILTER_ATTRS tag specifies the list of the attributes of the
 # custom filter to add. For more information please see Qt Help Project / Custom
-# Filters (see: http://qt-project.org/doc/qt-4.8/qthelpproject.html#custom-
+# Filters (see: http://doc.qt.io/archives/qt-4.8/qthelpproject.html#custom-
 # filters).
 # This tag requires that the tag GENERATE_QHP is set to YES.
 
-QHP_CUST_FILTER_ATTRS  = 
+QHP_CUST_FILTER_ATTRS  =
 
 # The QHP_SECT_FILTER_ATTRS tag specifies the list of the attributes this
 # project's filter section matches. Qt Help Project / Filter Attributes (see:
-# http://qt-project.org/doc/qt-4.8/qthelpproject.html#filter-attributes).
+# http://doc.qt.io/archives/qt-4.8/qthelpproject.html#filter-attributes).
 # This tag requires that the tag GENERATE_QHP is set to YES.
 
-QHP_SECT_FILTER_ATTRS  = 
+QHP_SECT_FILTER_ATTRS  =
 
 # The QHG_LOCATION tag can be used to specify the location of Qt's
 # qhelpgenerator. If non-empty doxygen will try to run qhelpgenerator on the
 # generated .qhp file.
 # This tag requires that the tag GENERATE_QHP is set to YES.
 
-QHG_LOCATION           = 
+QHG_LOCATION           =
 
 # If the GENERATE_ECLIPSEHELP tag is set to YES, additional index files will be
 # generated, together with the HTML files, they form an Eclipse help plugin. To
@@ -1500,7 +1567,7 @@ EXT_LINKS_IN_WINDOW    = NO
 
 FORMULA_FONTSIZE       = 14
 
-# Use the FORMULA_TRANPARENT tag to determine whether or not the images
+# Use the FORMULA_TRANSPARENT tag to determine whether or not the images
 # generated for formulas are transparent PNGs. Transparent PNGs are not
 # supported properly for IE 6.0, but are supported on all modern browsers.
 #
@@ -1512,7 +1579,7 @@ FORMULA_FONTSIZE       = 14
 FORMULA_TRANSPARENT    = YES
 
 # Enable the USE_MATHJAX option to render LaTeX formulas using MathJax (see
-# http://www.mathjax.org) which uses client side Javascript for the rendering
+# https://www.mathjax.org) which uses client side Javascript for the rendering
 # instead of using pre-rendered bitmaps. Use this if you do not have LaTeX
 # installed or if you want to formulas look prettier in the HTML output. When
 # enabled you may also need to install MathJax separately and configure the path
@@ -1539,8 +1606,8 @@ MATHJAX_FORMAT         = HTML-CSS
 # MATHJAX_RELPATH should be ../mathjax. The default value points to the MathJax
 # Content Delivery Network so you can quickly see the result without installing
 # MathJax. However, it is strongly recommended to install a local copy of
-# MathJax from http://www.mathjax.org before deployment.
-# The default value is: http://cdn.mathjax.org/mathjax/latest.
+# MathJax from https://www.mathjax.org before deployment.
+# The default value is: https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.5/.
 # This tag requires that the tag USE_MATHJAX is set to YES.
 
 MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
@@ -1550,7 +1617,7 @@ MATHJAX_RELPATH        = http://cdn.mathjax.org/mathjax/latest
 # MATHJAX_EXTENSIONS = TeX/AMSmath TeX/AMSsymbols
 # This tag requires that the tag USE_MATHJAX is set to YES.
 
-MATHJAX_EXTENSIONS     = 
+MATHJAX_EXTENSIONS     =
 
 # The MATHJAX_CODEFILE tag can be used to specify a file with javascript pieces
 # of code that will be used on startup of the MathJax code. See the MathJax site
@@ -1558,7 +1625,7 @@ MATHJAX_EXTENSIONS     =
 # example see the documentation.
 # This tag requires that the tag USE_MATHJAX is set to YES.
 
-MATHJAX_CODEFILE       = 
+MATHJAX_CODEFILE       =
 
 # When the SEARCHENGINE tag is enabled doxygen will generate a search box for
 # the HTML output. The underlying search engine uses javascript and DHTML and
@@ -1601,7 +1668,7 @@ SERVER_BASED_SEARCH    = NO
 #
 # Doxygen ships with an example indexer (doxyindexer) and search engine
 # (doxysearch.cgi) which are based on the open source search engine library
-# Xapian (see: http://xapian.org/).
+# Xapian (see: https://xapian.org/).
 #
 # See the section "External Indexing and Searching" for details.
 # The default value is: NO.
@@ -1614,11 +1681,11 @@ EXTERNAL_SEARCH        = NO
 #
 # Doxygen ships with an example indexer (doxyindexer) and search engine
 # (doxysearch.cgi) which are based on the open source search engine library
-# Xapian (see: http://xapian.org/). See the section "External Indexing and
+# Xapian (see: https://xapian.org/). See the section "External Indexing and
 # Searching" for details.
 # This tag requires that the tag SEARCHENGINE is set to YES.
 
-SEARCHENGINE_URL       = 
+SEARCHENGINE_URL       =
 
 # When SERVER_BASED_SEARCH and EXTERNAL_SEARCH are both enabled the unindexed
 # search data is written to a file for indexing by an external tool. With the
@@ -1634,7 +1701,7 @@ SEARCHDATA_FILE        = searchdata.xml
 # projects and redirect the results back to the right project.
 # This tag requires that the tag SEARCHENGINE is set to YES.
 
-EXTERNAL_SEARCH_ID     = 
+EXTERNAL_SEARCH_ID     =
 
 # The EXTRA_SEARCH_MAPPINGS tag can be used to enable searching through doxygen
 # projects other than the one defined by this configuration file, but that are
@@ -1644,7 +1711,7 @@ EXTERNAL_SEARCH_ID     =
 # EXTRA_SEARCH_MAPPINGS = tagname1=loc1 tagname2=loc2 ...
 # This tag requires that the tag SEARCHENGINE is set to YES.
 
-EXTRA_SEARCH_MAPPINGS  = 
+EXTRA_SEARCH_MAPPINGS  =
 
 #---------------------------------------------------------------------------
 # Configuration options related to the LaTeX output
@@ -1666,21 +1733,34 @@ LATEX_OUTPUT           = latex
 # The LATEX_CMD_NAME tag can be used to specify the LaTeX command name to be
 # invoked.
 #
-# Note that when enabling USE_PDFLATEX this option is only used for generating
-# bitmaps for formulas in the HTML output, but not in the Makefile that is
-# written to the output directory.
-# The default file is: latex.
+# Note that when not enabling USE_PDFLATEX the default is latex when enabling
+# USE_PDFLATEX the default is pdflatex and when in the later case latex is
+# chosen this is overwritten by pdflatex. For specific output languages the
+# default can have been set differently, this depends on the implementation of
+# the output language.
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
 LATEX_CMD_NAME         = latex
 
 # The MAKEINDEX_CMD_NAME tag can be used to specify the command name to generate
 # index for LaTeX.
+# Note: This tag is used in the Makefile / make.bat.
+# See also: LATEX_MAKEINDEX_CMD for the part in the generated output file
+# (.tex).
 # The default file is: makeindex.
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
 MAKEINDEX_CMD_NAME     = makeindex
 
+# The LATEX_MAKEINDEX_CMD tag can be used to specify the command name to
+# generate index for LaTeX.
+# Note: This tag is used in the generated output file (.tex).
+# See also: MAKEINDEX_CMD_NAME for the part in the Makefile / make.bat.
+# The default value is: \makeindex.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_MAKEINDEX_CMD    = \makeindex
+
 # If the COMPACT_LATEX tag is set to YES, doxygen generates more compact LaTeX
 # documents. This may be useful for small projects and may help to save some
 # trees in general.
@@ -1708,7 +1788,7 @@ PAPER_TYPE             = a4
 # If left blank no extra packages will be included.
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
-EXTRA_PACKAGES         = 
+EXTRA_PACKAGES         =
 
 # The LATEX_HEADER tag can be used to specify a personal LaTeX header for the
 # generated LaTeX document. The header should contain everything until the first
@@ -1724,7 +1804,7 @@ EXTRA_PACKAGES         =
 # to HTML_HEADER.
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
-LATEX_HEADER           = 
+LATEX_HEADER           =
 
 # The LATEX_FOOTER tag can be used to specify a personal LaTeX footer for the
 # generated LaTeX document. The footer should contain everything after the last
@@ -1735,7 +1815,7 @@ LATEX_HEADER           =
 # Note: Only use a user-defined footer if you know what you are doing!
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
-LATEX_FOOTER           = 
+LATEX_FOOTER           =
 
 # The LATEX_EXTRA_STYLESHEET tag can be used to specify additional user-defined
 # LaTeX style sheets that are included after the standard style sheets created
@@ -1746,7 +1826,7 @@ LATEX_FOOTER           =
 # list).
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
-LATEX_EXTRA_STYLESHEET = 
+LATEX_EXTRA_STYLESHEET =
 
 # The LATEX_EXTRA_FILES tag can be used to specify one or more extra images or
 # other source files which should be copied to the LATEX_OUTPUT output
@@ -1754,7 +1834,7 @@ LATEX_EXTRA_STYLESHEET =
 # markers available.
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
-LATEX_EXTRA_FILES      = 
+LATEX_EXTRA_FILES      =
 
 # If the PDF_HYPERLINKS tag is set to YES, the LaTeX that is generated is
 # prepared for conversion to PDF (using ps2pdf or pdflatex). The PDF file will
@@ -1801,12 +1881,28 @@ LATEX_SOURCE_CODE      = NO
 
 # The LATEX_BIB_STYLE tag can be used to specify the style to use for the
 # bibliography, e.g. plainnat, or ieeetr. See
-# http://en.wikipedia.org/wiki/BibTeX and \cite for more info.
+# https://en.wikipedia.org/wiki/BibTeX and \cite for more info.
 # The default value is: plain.
 # This tag requires that the tag GENERATE_LATEX is set to YES.
 
 LATEX_BIB_STYLE        = plain
 
+# If the LATEX_TIMESTAMP tag is set to YES then the footer of each generated
+# page will contain the date and time when the page was generated. Setting this
+# to NO can help when comparing the output of multiple runs.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_TIMESTAMP        = NO
+
+# The LATEX_EMOJI_DIRECTORY tag is used to specify the (relative or absolute)
+# path from which the emoji images will be read. If a relative path is entered,
+# it will be relative to the LATEX_OUTPUT directory. If left blank the
+# LATEX_OUTPUT directory will be used.
+# This tag requires that the tag GENERATE_LATEX is set to YES.
+
+LATEX_EMOJI_DIRECTORY  =
+
 #---------------------------------------------------------------------------
 # Configuration options related to the RTF output
 #---------------------------------------------------------------------------
@@ -1846,22 +1942,22 @@ COMPACT_RTF            = NO
 
 RTF_HYPERLINKS         = NO
 
-# Load stylesheet definitions from file. Syntax is similar to doxygen's config
-# file, i.e. a series of assignments. You only have to provide replacements,
-# missing definitions are set to their default value.
+# Load stylesheet definitions from file. Syntax is similar to doxygen's
+# configuration file, i.e. a series of assignments. You only have to provide
+# replacements, missing definitions are set to their default value.
 #
 # See also section "Doxygen usage" for information on how to generate the
 # default style sheet that doxygen normally uses.
 # This tag requires that the tag GENERATE_RTF is set to YES.
 
-RTF_STYLESHEET_FILE    = 
+RTF_STYLESHEET_FILE    =
 
 # Set optional variables used in the generation of an RTF document. Syntax is
-# similar to doxygen's config file. A template extensions file can be generated
-# using doxygen -e rtf extensionFile.
+# similar to doxygen's configuration file. A template extensions file can be
+# generated using doxygen -e rtf extensionFile.
 # This tag requires that the tag GENERATE_RTF is set to YES.
 
-RTF_EXTENSIONS_FILE    = 
+RTF_EXTENSIONS_FILE    =
 
 # If the RTF_SOURCE_CODE tag is set to YES then doxygen will include source code
 # with syntax highlighting in the RTF output.
@@ -1906,7 +2002,7 @@ MAN_EXTENSION          = .3
 # MAN_EXTENSION with the initial . removed.
 # This tag requires that the tag GENERATE_MAN is set to YES.
 
-MAN_SUBDIR             = 
+MAN_SUBDIR             =
 
 # If the MAN_LINKS tag is set to YES and doxygen generates man output, then it
 # will generate one additional man file for each entity documented in the real
@@ -1944,6 +2040,13 @@ XML_OUTPUT             = xml
 
 XML_PROGRAMLISTING     = YES
 
+# If the XML_NS_MEMB_FILE_SCOPE tag is set to YES, doxygen will include
+# namespace members in file scope as well, matching the HTML output.
+# The default value is: NO.
+# This tag requires that the tag GENERATE_XML is set to YES.
+
+XML_NS_MEMB_FILE_SCOPE = NO
+
 #---------------------------------------------------------------------------
 # Configuration options related to the DOCBOOK output
 #---------------------------------------------------------------------------
@@ -1976,9 +2079,9 @@ DOCBOOK_PROGRAMLISTING = NO
 #---------------------------------------------------------------------------
 
 # If the GENERATE_AUTOGEN_DEF tag is set to YES, doxygen will generate an
-# AutoGen Definitions (see http://autogen.sf.net) file that captures the
-# structure of the code including all documentation. Note that this feature is
-# still experimental and incomplete at the moment.
+# AutoGen Definitions (see http://autogen.sourceforge.net/) file that captures
+# the structure of the code including all documentation. Note that this feature
+# is still experimental and incomplete at the moment.
 # The default value is: NO.
 
 GENERATE_AUTOGEN_DEF   = NO
@@ -2019,7 +2122,7 @@ PERLMOD_PRETTY         = YES
 # overwrite each other's variables.
 # This tag requires that the tag GENERATE_PERLMOD is set to YES.
 
-PERLMOD_MAKEVAR_PREFIX = 
+PERLMOD_MAKEVAR_PREFIX =
 
 #---------------------------------------------------------------------------
 # Configuration options related to the preprocessor
@@ -2060,7 +2163,7 @@ SEARCH_INCLUDES        = YES
 # preprocessor.
 # This tag requires that the tag SEARCH_INCLUDES is set to YES.
 
-INCLUDE_PATH           = 
+INCLUDE_PATH           =
 
 # You can use the INCLUDE_FILE_PATTERNS tag to specify one or more wildcard
 # patterns (like *.h and *.hpp) to filter out the header-files in the
@@ -2068,7 +2171,7 @@ INCLUDE_PATH           =
 # used.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
-INCLUDE_FILE_PATTERNS  = 
+INCLUDE_FILE_PATTERNS  =
 
 # The PREDEFINED tag can be used to specify one or more macro names that are
 # defined before the preprocessor is started (similar to the -D option of e.g.
@@ -2118,13 +2221,13 @@ SKIP_FUNCTION_MACROS   = YES
 # the path). If a tag file is not located in the directory in which doxygen is
 # run, you must also specify the path to the tagfile here.
 
-TAGFILES               = 
+TAGFILES               =
 
 # When a file name is specified after GENERATE_TAGFILE, doxygen will create a
 # tag file that is based on the input files it reads. See section "Linking to
 # external documentation" for more information about the usage of tag files.
 
-GENERATE_TAGFILE       = 
+GENERATE_TAGFILE       =
 
 # If the ALLEXTERNALS tag is set to YES, all external class will be listed in
 # the class index. If set to NO, only the inherited external classes will be
@@ -2173,14 +2276,14 @@ CLASS_DIAGRAMS         = NO
 # the mscgen tool resides. If left empty the tool is assumed to be found in the
 # default search path.
 
-MSCGEN_PATH            = 
+MSCGEN_PATH            =
 
 # You can include diagrams made with dia in doxygen documentation. Doxygen will
 # then run dia to produce the diagram and insert it in the documentation. The
 # DIA_PATH tag allows you to specify the directory where the dia binary resides.
 # If left empty dia is assumed to be found in the default search path.
 
-DIA_PATH               = 
+DIA_PATH               =
 
 # If set to YES the inheritance and collaboration graphs will hide inheritance
 # and usage relations if the target is undocumented or is not a class.
@@ -2229,7 +2332,7 @@ DOT_FONTSIZE           = 10
 # the path where dot can find it using this tag.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-DOT_FONTPATH           = 
+DOT_FONTPATH           =
 
 # If the CLASS_GRAPH tag is set to YES then doxygen will generate a graph for
 # each documented class showing the direct and indirect inheritance relations.
@@ -2373,26 +2476,26 @@ INTERACTIVE_SVG        = NO
 # found. If left blank, it is assumed the dot tool can be found in the path.
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-DOT_PATH               = 
+DOT_PATH               =
 
 # The DOTFILE_DIRS tag can be used to specify one or more directories that
 # contain dot files that are included in the documentation (see the \dotfile
 # command).
 # This tag requires that the tag HAVE_DOT is set to YES.
 
-DOTFILE_DIRS           = 
+DOTFILE_DIRS           =
 
 # The MSCFILE_DIRS tag can be used to specify one or more directories that
 # contain msc files that are included in the documentation (see the \mscfile
 # command).
 
-MSCFILE_DIRS           = 
+MSCFILE_DIRS           =
 
 # The DIAFILE_DIRS tag can be used to specify one or more directories that
 # contain dia files that are included in the documentation (see the \diafile
 # command).
 
-DIAFILE_DIRS           = 
+DIAFILE_DIRS           =
 
 # When using plantuml, the PLANTUML_JAR_PATH tag should be used to specify the
 # path where java can find the plantuml.jar file. If left blank, it is assumed
@@ -2400,12 +2503,17 @@ DIAFILE_DIRS           =
 # generate a warning when it encounters a \startuml command in this case and
 # will not generate output for the diagram.
 
-PLANTUML_JAR_PATH      = 
+PLANTUML_JAR_PATH      =
+
+# When using plantuml, the PLANTUML_CFG_FILE tag can be used to specify a
+# configuration file for plantuml.
+
+PLANTUML_CFG_FILE      =
 
 # When using plantuml, the specified paths are searched for files specified by
 # the !include statement in a plantuml block.
 
-PLANTUML_INCLUDE_PATH  = 
+PLANTUML_INCLUDE_PATH  =
 
 # The DOT_GRAPH_MAX_NODES tag can be used to set the maximum number of nodes
 # that will be shown in the graph. If the number of nodes in a graph becomes
diff --git a/dox/ru/error_list.dox b/dox/ru/error_list.dox
index 195df94..c038525 100644
--- a/dox/ru/error_list.dox
+++ b/dox/ru/error_list.dox
@@ -1,135 +1,115 @@
 
 /*!
-	\ingroup ERROR_CODE_GROUP
-	\def RES_OK
-	\brief Функция завершилась корректно.	
-	Ошибки отсутствуют.
+\ingroup ERROR_CODE_GROUP
+\def RES_OK
+\brief Функция завершилась корректно. Ошибки отсутствуют.
 */
 
 
 /*!
-	\ingroup ERROR_CODE_GROUP
-	\def ERROR_ELLIP_K
-	\brief Модуль эллиптического интеграла Якоби должен быть от 0 до 1. 	
-	Данная ошибка возникает при расчете эллиптических функций Якоби при неверном задании параметра эллиптического модуля.
-	Функция завершает работу и возвращает данный код ошибки.
-
+\ingroup ERROR_CODE_GROUP
+\def ERROR_ELLIP_K
+\brief Модуль эллиптического интеграла Якоби должен быть от 0 до 1.
+Данная ошибка возникает при расчете эллиптических функций Якоби при неверном задании параметра эллиптического модуля.
+Функция завершает работу и возвращает данный код ошибки.
 */
 
 
-
-
-
 /*!
-	\ingroup ERROR_CODE_GROUP
-	\def ERROR_FFT_SIZE
-	\brief Неверно задан размер БПФ.
-
+\ingroup ERROR_CODE_GROUP
+\def ERROR_FFT_SIZE
+\brief Неверно задан размер БПФ.
 */
 
 
-
-
-
-
 /*!
-	\ingroup ERROR_CODE_GROUP
-	\def ERROR_FILTER_ORD
-	\brief Порядок фильтра задан не верно. Порядок фильтра должен быть задан положительным целым значением.
-
+\ingroup ERROR_CODE_GROUP
+\def ERROR_FILTER_ORD
+\brief Порядок фильтра задан неверно. Порядок фильтра должен быть задан положительным целым значением.
 */
 
 
-
-
-
-
-
 /*!
-	\ingroup ERROR_CODE_GROUP
-	\def ERROR_FILTER_RP
-	\brief Параметр неравномерности фильтра в полосе пропускания задан не верно.
-	Данный параметр задается в дБ и должен быть положительным числом.
-*/
-
-
-
-
-
-
-/*!
-	\ingroup ERROR_CODE_GROUP
-	\def ERROR_FILTER_RS
-	\brief Параметр подавления фильтра в полосе заграждения задан не верно.
-	Данный параметр задается в дБ и должен быть положительным числом. 
+\ingroup ERROR_CODE_GROUP
+\def ERROR_FILTER_RP
+\brief Параметр неравномерности фильтра в полосе пропускания задан неверно.
+Данный параметр задается в дБ и должен быть положительным числом.
 */
 
 
 
 /*!
-	\ingroup ERROR_CODE_GROUP
-	\def ERROR_FILTER_WP
-	\brief Параметр частоты среза фильтра задан не верно.
+\ingroup ERROR_CODE_GROUP
+\def ERROR_FILTER_RS
+\brief Параметр подавления фильтра в полосе заграждения задан неверно.
+Данный параметр задается в дБ и должен быть положительным числом. 
+*/
+
+
+
+/*!
+\ingroup ERROR_CODE_GROUP
+\def ERROR_FILTER_WP
+\brief Параметр частоты среза фильтра задан неверно.
 */
 
 
 
 
 /*!
-	\ingroup ERROR_CODE_GROUP
-	\def ERROR_FILTER_A0
-	\brief Коэффициент \f$a_0\f$ знаменателя передаточной функции фильтра равен нулю.	
-	Необходимо задать параметр \f$a_0\f$ отличным от нуля.
+\ingroup ERROR_CODE_GROUP
+\def ERROR_FILTER_A0
+\brief Коэффициент \f$a_0\f$ знаменателя передаточной функции фильтра равен нулю.
+Необходимо задать параметр \f$a_0\f$ отличным от нуля.
 */
 
 
 
 
 /*!
-	\ingroup ERROR_CODE_GROUP
-	\def ERROR_FNAME
-	\brief Ошибка в имени файла. Необходимо задать корректное имя файла.
+\ingroup ERROR_CODE_GROUP
+\def ERROR_FNAME
+\brief Ошибка в имени файла. Необходимо задать корректное имя файла.
 */
 
 
 
 
 /*!
-	\ingroup ERROR_CODE_GROUP
-	\def ERROR_FOPEN
-	\brief Ошибка открытия файла. Файл с заданным именем не может быть открыт для записи и чтения.
+\ingroup ERROR_CODE_GROUP
+\def ERROR_FOPEN
+\brief Ошибка открытия файла. Файл с заданным именем не может быть открыт для записи и чтения.
 */
 
 
 
 
 /*!
-	\ingroup ERROR_CODE_GROUP
-	\def ERROR_FS
-	\brief Частота дискретизации задана неверно. Частота дискретизации должна быть положительным числом.
+\ingroup ERROR_CODE_GROUP
+\def ERROR_FS
+\brief Частота дискретизации задана неверно. Частота дискретизации должна быть положительным числом.
 */
 
 
 /*!
-	\ingroup ERROR_CODE_GROUP
-	\def ERROR_PTR
-	\brief Ошибка указателя. 	
-	Данная ошибка означает, что один из обязательных указателей 
-	(память под который должна быть выделена) передан как `NULL`. При возникновении данной ошибки,
-	функция завершает работу и возвращает данный код ошибки.
-
+\ingroup ERROR_CODE_GROUP
+\def ERROR_PTR
+\brief Ошибка указателя. 
+Данная ошибка означает, что один из обязательных указателей 
+(память под который должна быть выделена) передан как `NULL`.
+При возникновении данной ошибки, функция завершает работу 
+и возвращает данный код ошибки.
 */
 
 
 
 
 /*!
-	\ingroup ERROR_CODE_GROUP
-	\def ERROR_SIZE
-	\brief Ошибка при передаче размера массива. 	
-	Данная ошибка возникает когда помимо указателя
-	на массив входных или выходных данных передается неверный размер массива (меньше или равный нулю).
-	При возникновении данной ошибки,
-	функция завершает работу и возвращает данный код ошибки.
-
+\ingroup ERROR_CODE_GROUP
+\def ERROR_SIZE
+\brief Ошибка при передаче размера массива.
+Данная ошибка возникает когда помимо указателя
+на массив входных или выходных данных передается неверный размер массива (меньше или равный нулю).
+При возникновении данной ошибки,
+функция завершает работу и возвращает данный код ошибки.
 */
diff --git a/dox/ru/groups_define.dox b/dox/ru/groups_define.dox
index 766050a..2e42dac 100644
--- a/dox/ru/groups_define.dox
+++ b/dox/ru/groups_define.dox
@@ -1,99 +1,59 @@
 /*!
-  \defgroup MAIN_GROUP  Библиотека DSPL
 
-  \defgroup GETTING_START Быстрый старт использования библиотеки DSPL
-  \ingroup MAIN_GROUP
+\defgroup GETTING_START Быстрый старт использования библиотеки DSPL
 
-  \defgroup TYPES_GROUP Типы данных DSPL
-  \ingroup MAIN_GROUP
-  В данной группе описаны типы данных библиотеки DSPL и методы их преобразования.
+
+\defgroup TYPES_GROUP Типы данных DSPL
+В данной группе описаны типы данных библиотеки DSPL и методы их преобразования.
+
+
+\defgroup DFT_GROUP  Алгоритмы дискретного и быстрого преобразования Фурье
+Алгоритмы дискретного и быстрого преобразования Фурье.
+
+\defgroup WIN_GROUP  Функции оконного взвешивания
+
+\defgroup HILBERT_GROUP  Преобразование Гильберта
+В данной группе собраны функции реализующие алгоритмы преобразования Гильберта.
+
+\defgroup FILTER_GROUP  Цифровая фильтрация. Синтез и анализ цифровых фильтров.
+
+\defgroup FILTER_CONV_GROUP  Свертка и цифровая фильтрация
+Функции для расчета циклической и линейной сверток, а также цифровой КИХ и БИХ фильтрации.
+
+\defgroup IIR_FILTER_DESIGN_GROUP  Расчет БИХ-фильтров
+Функции расчета цифровых БИХ-фильтров.
+
+\defgroup FIR_FILTER_DESIGN_GROUP  Расчет КИХ-фильтров
+Функции расчета цифровых КИХ-фильтров.
+
+\defgroup FILTER_ANALYSIS_GROUP Функции анализа аналоговых и цифровых фильтров
+Функции анализа аналоговых и цифровых фильтров
+
+\defgroup RESAMPLING_GROUP Цифровая передискретизация сигналов
 
 
 
-  \defgroup SPECTRAL_GROUP  Спектральный анализ
-  \ingroup MAIN_GROUP
-  В данной группе собраны функции реализующие алгоритмы дискретного 
-  преобразования Фурье (ДПФ), быстрого преобразования Фурье (БПФ), функции оконного взвешивания, расчета спектральной плотности мощности.
+\defgroup SPEC_MATH_COMMON_GROUP  Базовые математические функции и работа с массивами данных
 
-  \defgroup DFT_GROUP  Алгоритмы дискретного и быстрого преобразования Фурье
-  \ingroup SPECTRAL_GROUP
-  Алгоритмы дискретного и быстрого преобразования Фурье.
+\defgroup SPEC_MATH_TRIG_GROUP Тригонометрические и гиперболические функции вещественного комплексного аргумента
+
+\defgroup SPEC_MATH_TRANSCEND Высшие трансцендентные функции
+
+\defgroup SPEC_MATH_ELLIP_GROUP Эллиптические функции вещественного 
+и комплексного аргумента
+
+\defgroup SPEC_MATH_RAND_GEN_GROUP Генерация случайных чисел
+
+\defgroup SPEC_MATH_STAT_GROUP Функции математической статистики
+
+\defgroup SPEC_MATH_LINALG_GROUP Линейная алгебра и матричные операции
 
 
-  \defgroup WIN_GROUP  Функции оконного взвешивания
-  \ingroup SPECTRAL_GROUP
+\defgroup IN_OUT_GROUP Функции ввода - вывода данных
+Функции ввода и вывода данных. Запись и считывание данных в бинарные и текстовые файлы
 
-
-  \defgroup HILBERT_GROUP  Преобразование Гильберта
-  \ingroup MAIN_GROUP
-  В данной группе собраны функции реализующие алгоритмы преобразования Гильберта.
-
-
-
-  \defgroup FILTER_GROUP  Цифровая фильтрация. Синтез и анализ цифровых фильтров.
-  \ingroup MAIN_GROUP
-
-
-  \defgroup FILTER_CONV_GROUP  Свертка и цифровая фильтрация
-  \ingroup FILTER_GROUP
-  Функции для расчета циклической и линейной сверток, а также цифровой КИХ и БИХ фильтрации.
-
-
-  \defgroup IIR_FILTER_DESIGN_GROUP  Расчет БИХ-фильтров
-  \ingroup FILTER_GROUP
-  Функции расчета цифровых БИХ-фильтров.
-
-
-  \defgroup FIR_FILTER_DESIGN_GROUP  Расчет КИХ-фильтров
-  \ingroup FILTER_GROUP
-  Функции расчета цифровых КИХ-фильтров.
-
-  \defgroup FILTER_ANALYSIS_GROUP Функции анализа аналоговых и цифровых фильтров
-  \ingroup FILTER_GROUP
-  Функции анализа аналоговых и цифровых фильтров
-
-  \defgroup RESAMPLING_GROUP Цифровая передискретизация сигналов
-  \ingroup MAIN_GROUP
-
-
-  \defgroup SPEC_MATH_GROUP  Специальные математические функции
-  \ingroup MAIN_GROUP
-
-  \defgroup SPEC_MATH_COMMON_GROUP  Базовые математические функции и работа с массивами данных
-  \ingroup SPEC_MATH_GROUP
-
-  
-  \defgroup SPEC_MATH_TRIG_GROUP Тригонометрические и гиперболические функции вещественного и комплексного аргумента
-  \ingroup SPEC_MATH_GROUP
-  
-  \defgroup SPEC_MATH_TRANSCEND Высшие трансцендентные функции
-  \ingroup SPEC_MATH_GROUP
-  
-  \defgroup SPEC_MATH_ELLIP_GROUP Эллиптические функции вещественного 
-  и комплексного аргумента
-  \ingroup SPEC_MATH_GROUP
-
-  \defgroup SPEC_MATH_RAND_GEN_GROUP Генерация случайных чисел
-  \ingroup SPEC_MATH_GROUP
-
-  \defgroup SPEC_MATH_STAT_GROUP Функции математической статистики
-  \ingroup SPEC_MATH_GROUP
-
-  \defgroup SPEC_MATH_LINALG_GROUP Линейная алгебра и матричные операции
-  \ingroup SPEC_MATH_GROUP
-
-
-  \defgroup IN_OUT_GROUP Функции ввода - вывода данных
-  \ingroup MAIN_GROUP
-  Функции ввода и вывода данных. Запись и считывание данных в бинарные и текстовые файлы
-
-
-  \defgroup MACRO_DEFINE_GROUP Макросы и константы
-  \ingroup MAIN_GROUP
-
-  \defgroup ERROR_CODE_GROUP Коды ошибок при вызове функций
-  \ingroup MACRO_DEFINE_GROUP
-  В данной группе приведены возможные коды ошибок, возвращаемые функциями библиотеки в процессе
-  работы.
+\defgroup ERROR_CODE_GROUP Коды ошибок при вызове функций
+В данной группе приведены возможные коды ошибок, возвращаемые функциями библиотеки в процессе
+работы.
 
 */
diff --git a/dox/ru/mainpage.dox b/dox/ru/mainpage.dox
index 418553b..80696f3 100644
--- a/dox/ru/mainpage.dox
+++ b/dox/ru/mainpage.dox
@@ -2,42 +2,57 @@
 /*!
 \mainpage DSPL-2.0 - библиотека алгоритмов цифровой обработки сигналов.
 
+DSPL-2.0 - свободная библиотека алгоритмов цифровой обработки сигналов, 
+с открытым исходным кодом, написанная на языке Си.<BR>
 
-DSPL-2.0 - свободная библиотека алгоритмов цифровой обработки сигналов,
-включающая в себя следующие группы алгоритмов: <BR>
+Распространяется под лицензией
+<a href = "http://www.gnu.org/licenses/lgpl.html">LGPL v3.</a>
+Это позволяет использовать данную библиотеку в закрытых приложения при 
+условии динамической линковки.
 
-\ref DFT_GROUP <BR>
-\ref WIN_GROUP <BR>
-\ref FILTER_CONV_GROUP <BR>
-\ref IIR_FILTER_DESIGN_GROUP <BR>
-\ref FIR_FILTER_DESIGN_GROUP <BR>
-\ref FILTER_ANALYSIS_GROUP <BR>
-\ref RESAMPLING_GROUP <BR>
-\ref SPEC_MATH_GROUP <BR>
-\ref IN_OUT_GROUP <BR>
-
-<BR>
-
-Библиотека поддерживает работу с вещественными и
-комплексными типами входных данных. <BR>
-
-Описание используемых типов:<BR>
-
-\ref TYPES_GROUP <BR>
-
-DSPL-2.0 библиотека с открытым исходным кодом, написанная на языке Си.<BR>
-
-
- Pаспространяется под лицензией
- <a href = "http://www.gnu.org/licenses/lgpl.html">LGPL v3</a>
 
 Исходные коды библиотеки доступны на
 <a href = "https://github.com/Dsplib/libdspl-2.0">GitHub</a>.<BR>
 
 Вы также можете внести свой вклад в развитие данной библиотеки. Присоединяйтесь!
 
-Для начала работы с библиотекой необходимо ознакомиться с разделами:
+Для начала работы с библиотекой необходимо ознакомиться с разделом:
+
+
+
+<H3>
+Содержание документации:
+</H3>
 
 \ref getting_started_windows_gcc <BR>
 
+\ref TYPES_GROUP <BR>
+
+<B>Математические функции представлены следующими разделами:</B> <BR>
+\ref SPEC_MATH_COMMON_GROUP <BR>
+\ref SPEC_MATH_TRIG_GROUP <BR>
+\ref SPEC_MATH_TRANSCEND <BR>
+\ref SPEC_MATH_ELLIP_GROUP  <BR>
+\ref SPEC_MATH_RAND_GEN_GROUP <BR>
+\ref SPEC_MATH_STAT_GROUP <BR>
+\ref SPEC_MATH_LINALG_GROUP <BR><BR>
+
+<B>Алгоритмы спектрального анализа:</B><BR>
+\ref DFT_GROUP <BR>
+\ref WIN_GROUP <BR>
+\ref HILBERT_GROUP <BR>
+
+<B>Расчет и анализ аналоговых и цифровых фильтров:</B><BR>
+\ref FILTER_CONV_GROUP <BR>
+\ref IIR_FILTER_DESIGN_GROUP <BR>
+\ref FIR_FILTER_DESIGN_GROUP <BR>
+\ref FILTER_ANALYSIS_GROUP <BR>
+
+<B>Прочие алгоритмы:</B><BR>
+\ref RESAMPLING_GROUP <BR>
+\ref IN_OUT_GROUP <BR>
+
+<BR>
+\ref ERROR_CODE_GROUP <BR>
+
 */
diff --git a/dspl/dox/ru/conv.dox b/dspl/dox/ru/conv.dox
index ae267f1..af4491c 100644
--- a/dspl/dox/ru/conv.dox
+++ b/dspl/dox/ru/conv.dox
@@ -88,7 +88,7 @@ cr[5] =  12.0
                   Память должна быть выделена.<BR><BR>
 
 \return
-`RES_OK`          если свертка расчитана успешно.<BR>
+`RES_OK`          если свертка рассчитана успешно.<BR>
  В противном случае \ref ERROR_CODE_GROUP "код ошибки".
 
 
@@ -127,6 +127,88 @@ cc[5] =   0.0+24.0j
 ***************************************************************************** */
 
 
+
+
+
+
+
+
+
+/*! ****************************************************************************
+\ingroup FILTER_CONV_GROUP
+\fn int conv_fft_cmplx(complex_t* a, int na, complex_t* b, int nb,
+                       fft_t* pfft, complex_t* c) 
+\brief Линейная свертка двух комплексных векторов с использованием алгоритмов
+быстрого преобразования Фурье
+
+Функция рассчитывает линейную свертку двух векторов \f$ c = a * b\f$ используя
+секционную обработку с перекрытием в частотной области. Это позволяет сократить 
+вычислительные операции при расчете длинных сверток.
+
+
+
+\param[in]  a     Указатель на первый вектор  \f$a\f$.<BR>
+                  Размер вектора `[na x 1]`.<BR><BR>
+
+\param[in]  na    Размер первого вектора.<BR><BR>
+
+\param[in]  b     Указатель на второй вектор \f$b\f$.<BR>
+                  Размер вектора `[nb x 1]`.<BR><BR>
+                  
+\param[in]  nb    Размер второго вектора.<BR><BR>
+
+\param[in]  pfft  Указатель на структуру `fft_t` алгоритма 
+                  быстрого преобразования Фурье.<BR>
+                  Функция изменит состояние полей структуры `fft_t`,
+                  поэтому структура должна быть очищена перед выходом из 
+                  программы для исключения утечек памяти.<BR>
+
+\param[out] c     Указатель на вектор свертки \f$ c = a * b\f$.<BR>
+                  Размер вектора `[na + nb - 1  x  1]`.<BR>
+                  Память должна быть выделена.<BR><BR>
+
+\return
+`RES_OK`          если свертка рассчитана успешно.<BR>
+ В противном случае \ref ERROR_CODE_GROUP "код ошибки".
+
+
+\note Данная функция наиболее эффективна при вычислении длинных сверток.
+
+Пример использования функции:
+
+\include conv_fft_cmplx_test.c
+
+Результат работы:
+\verbatim
+c[  0] =     -1.00    -0.00j    d[  0] =     -1.00    +0.00j
+c[  1] =     -6.00    +4.00j    d[  1] =     -6.00    +4.00j
+c[  2] =    -15.00   +20.00j    d[  2] =    -15.00   +20.00j
+c[  3] =    -28.00   +56.00j    d[  3] =    -28.00   +56.00j
+c[  4] =    -45.00  +120.00j    d[  4] =    -45.00  +120.00j
+c[  5] =    -55.00  +210.00j    d[  5] =    -55.00  +210.00j
+c[  6] =    -65.00  +300.00j    d[  6] =    -65.00  +300.00j
+c[  7] =    -75.00  +390.00j    d[  7] =    -75.00  +390.00j
+c[  8] =    -85.00  +480.00j    d[  8] =    -85.00  +480.00j
+c[  9] =    -95.00  +570.00j    d[  9] =    -95.00  +570.00j
+c[ 10] =   -105.00  +660.00j    d[ 10] =   -105.00  +660.00j
+c[ 11] =   -115.00  +750.00j    d[ 11] =   -115.00  +750.00j
+c[ 12] =   -125.00  +840.00j    d[ 12] =   -125.00  +840.00j
+c[ 13] =   -135.00  +930.00j    d[ 13] =   -135.00  +930.00j
+c[ 14] =   -145.00 +1020.00j    d[ 14] =   -145.00 +1020.00j
+c[ 15] =   -124.00 +1080.00j    d[ 15] =   -124.00 +1080.00j
+c[ 16] =    -99.00 +1016.00j    d[ 16] =    -99.00 +1016.00j
+c[ 17] =    -70.00  +820.00j    d[ 17] =    -70.00  +820.00j
+c[ 18] =    -37.00  +484.00j    d[ 18] =    -37.00  +484.00j
+\endverbatim
+
+\author Бахурин Сергей www.dsplib.org
+***************************************************************************** */
+
+
+
+
+
+
 /*! ****************************************************************************
 \ingroup FILTER_CONV_GROUP
 \fn int filter_iir(double* b, double* a, int ord, double* x, int n, double* y)
diff --git a/examples/src/conv_fft_cmplx_test.c b/examples/src/conv_fft_cmplx_test.c
index e1c9ec7..16601b9 100644
--- a/examples/src/conv_fft_cmplx_test.c
+++ b/examples/src/conv_fft_cmplx_test.c
@@ -20,12 +20,14 @@ int main()
   conv_fft_cmplx(a, N, b, M, &pfft, c);
   conv_cmplx(a, N, b, M, d);
   
+  // print result
   for(n = 0; n < N+M-1; n++)
   {
     printf("c[%3d] = %9.2f%+9.2fj    ", n, RE(c[n]), IM(c[n]));
     printf("d[%3d] = %9.2f%+9.2fj  \n", n, RE(d[n]), IM(d[n]));
   }
-  fft_free(&pfft);
+  
+  fft_free(&pfft);        // free fft structure memory
   dspl_free(handle);      // free dspl handle
   return 0;
 }