// Copyright (c) 2019, Vincent SAMY
// All rights reserved.

// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//     * Redistributions of source code must retain the above copyright
//       notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above copyright
//       notice, this list of conditions and the following disclaimer in the
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//     * Neither the name of the AIST nor the
//       names of its contributors may be used to endorse or promote products
//       derived from this software without specific prior written permission.

// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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// WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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#pragma once

#include <Eigen/Core>

namespace difi {

template <typename T>
constexpr T pi = T(3.14159265358979323846264338327950288419716939937510582097494459230781L);

template <typename T>
using vectX_t = Eigen::Matrix<T, Eigen::Dynamic, 1>; /*!< Eigen column-vector */

template <typename T>
using vectXc_t = vectX_t<std::complex<T>>; /*!< Eigen complex column-vector */

} // namespace difi