38959ed8f1
lib/libm: Reduce size of static two_over_pi array.
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Thanks to Jeff Epler for the idea.
Signed-off-by: Damien George <damien@micropython.org>
2020-09-04 00:45:56 +10:00
d6243568a0
all: Remove commented-out include statements.
2020-04-23 11:24:15 +10:00
70affd9ba2
all: Fix implicit floating point to integer conversions.
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These are found when building with -Wfloat-conversion.
2020-04-18 22:42:24 +10:00
bcf01d1686
all: Fix implicit conversion from double to float.
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These are found when building with -Wfloat-conversion.
2020-04-18 22:42:24 +10:00
8960a28238
lib/libm/math: Add implementation of __signbitf, if needed by a port.
2018-09-27 15:21:04 +10:00
4c08932e73
lib/libm/math: Fix int type in float union, uint64_t should be uint32_t.
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A float is 32-bits wide.
2018-09-27 15:19:53 +10:00
b9a133e5ad
lib/libm/wf_tgamma: Fix tgammaf handling of -inf, should return nan.
2018-09-04 17:00:35 +10:00
afc7ddca31
lib/libm/math: Make tanhf more efficient and handle large numbers.
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Prior to this patch tanhf(large number) would return nan due to inf/inf.
2018-09-04 17:00:30 +10:00
81a06d2c9c
lib/libm: Remove implementation of log2f, use MP_NEED_LOG2 instead.
2017-10-10 16:01:13 +11:00
f869d6b2e3
lib/libm: Fix tanhf so that it correctly handles +/- infinity args.
2017-10-04 21:14:00 +11:00
55f33240f3
all: Use the name MicroPython consistently in comments
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There were several different spellings of MicroPython present in comments,
when there should be only one.
2017-07-31 18:35:40 +10:00
3bedff0b3c
lib/libm/math: Remove implementations of float conversion functions.
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These implementations are incorrect (eg f2d and d2f don't handle special
values like 0.0) and proper versions can be provided by libgcc (or
equivalent depending on the toolchain).
libgcc is now linked with the stmhal port so that library will provide
these functions from now on.
2017-06-14 17:18:23 +10:00
b53a63517a
lib/libm: Use isfinite instead of finitef, for C99 compatibility.
2017-05-31 11:34:29 +10:00
fb161aa45a
lib/libm: Add implementation of nearbyintf, from musl-1.1.16.
2017-03-24 10:38:11 +11:00
cd527bb324
lib/libm: Move Thumb-specific sqrtf function to separate file.
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This allows it to be used only when the hardware supports VFP
instructions, preventing compile errors.
2016-11-03 12:26:32 +11:00
7ddd85f933
lib/libm: Remove unused definition of "one".
2016-06-25 22:30:40 +01:00
873853f1a8
lib/libm: Format code to pass gcc v6.1.1 warning.
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gcc 6.1.1 warns when indentation is misleading, and in this case the
formatting of the code really is misleading. So adjust the formatting
to be clear of the meaning of the code.
2016-06-25 22:28:43 +01:00
a67651406d
lib/libm: Allow math funcs to be used by non-Thumb archs.
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Requires addition of software implementation of sqrtf function.
2015-12-18 21:05:44 +00:00
9ab94c468c
lib/libm: Add implementations of erf, erfc, lgamma, tgamma.
2015-02-22 14:47:11 +00:00
6d1f5070ce
lib/libm: Add frexp and modf functions; use in stmhal; add tests.
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Addresses issue #1081 .
2015-01-22 13:48:29 +00:00
8a2cc1c7e4
stmhal: Add fake implementation of __aeabi_f2lz().
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To make mp_obj_new_int_from_float() somehow work.
2014-12-30 00:52:41 +02:00
f04329e93b
lib/libm: Add acosh, asinh, atanh, tan; get working with stmhal.
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acoshf, asinhf, atanhf were added from musl. mathsincos.c was
split up into its original, separate files (from newlibe-nano-2).
tan was added.
All of the important missing float functions are now implemented,
and pyboard now passes tests/float/math_fun.py (finally!).
2014-12-18 14:44:02 +00:00
1559a97810
py: Add builtin round function.
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Addresses issue #934 .
2014-10-31 11:28:50 +00:00
8594ce2280
py: Implement divmod, % and proper // for floating point.
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Tested and working on unix and pyboard.
2014-09-13 18:43:09 +01:00
20beff9ae3
py and libm: Add asinf,acosf; print higher precision for float.
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Also use less stack space when printing single precision float.
Addition of asinf and acosf addresses issue #851 .
2014-09-11 22:24:45 +01:00
4d3fc46326
lib, libm: Add back dummy definition of tanf.
2014-08-29 23:24:00 +01:00
8707ea3421
lib: Add lib and libm, moving current files from stmhal.
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Top-level lib directory is for standard C libraries that we want to
provide our own versions of (for efficiency and stand-alone reasons).
It currently has libm in it for math functions.
Also add atanf and atan2f, which addresses issue #837 .
2014-08-29 22:42:26 +01:00
Damien George