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https://github.com/bolero-MURAKAMI/Sprout.git
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add sprout::asinh, acosh, atanh
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bolero-MURAKAMI
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435e6511b0
commit
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4 changed files with 146 additions and 0 deletions
48
sprout/math/acosh.hpp
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48
sprout/math/acosh.hpp
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#ifndef SPROUT_MATH_ACOSH_HPP
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#define SPROUT_MATH_ACOSH_HPP
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#include <limits>
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/math/log.hpp>
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#include <sprout/math/sqrt.hpp>
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#include <sprout/utility/enabler_if.hpp>
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#if SPROUT_USE_BUILTIN_CMATH_FUNCTION
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# include <cmath>
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#endif
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namespace sprout {
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namespace math {
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namespace detail {
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template<
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typename FloatType,
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typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler
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>
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inline SPROUT_CONSTEXPR FloatType
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acosh(FloatType x) {
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return x < 1 ? std::numeric_limits<FloatType>::quiet_NaN()
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: sprout::math::detail::log(x + sprout::math::detail::sqrt(x * x - 1))
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;
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}
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template<
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typename IntType,
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typename sprout::enabler_if<std::is_integral<IntType>::value>::type = sprout::enabler
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>
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inline SPROUT_CONSTEXPR double
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acosh(IntType x) {
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return sprout::math::detail::acosh(static_cast<double>(x));
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}
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} // namespace detail
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# if SPROUT_USE_BUILTIN_CMATH_FUNCTION
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using std::acosh;
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# else
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using sprout::math::detail::acosh;
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# endif
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} // namespace math
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using sprout::math::acosh;
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} // namespace sprout
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#endif // #ifndef SPROUT_MATH_ACOSH_HPP
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46
sprout/math/asinh.hpp
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46
sprout/math/asinh.hpp
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#ifndef SPROUT_MATH_ASINH_HPP
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#define SPROUT_MATH_ASINH_HPP
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/math/log.hpp>
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#include <sprout/math/sqrt.hpp>
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#include <sprout/utility/enabler_if.hpp>
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#if SPROUT_USE_BUILTIN_CMATH_FUNCTION
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# include <cmath>
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#endif
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namespace sprout {
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namespace math {
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namespace detail {
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template<
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typename FloatType,
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typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler
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>
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inline SPROUT_CONSTEXPR FloatType
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asinh(FloatType x) {
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return sprout::math::detail::log(x + sprout::math::detail::sqrt(x * x + 1))
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;
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}
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template<
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typename IntType,
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typename sprout::enabler_if<std::is_integral<IntType>::value>::type = sprout::enabler
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>
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inline SPROUT_CONSTEXPR double
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asinh(IntType x) {
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return sprout::math::detail::asinh(static_cast<double>(x));
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}
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} // namespace detail
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# if SPROUT_USE_BUILTIN_CMATH_FUNCTION
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using std::asinh;
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# else
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using sprout::math::detail::asinh;
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# endif
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} // namespace math
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using sprout::math::asinh;
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} // namespace sprout
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#endif // #ifndef SPROUT_MATH_ASINH_HPP
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49
sprout/math/atanh.hpp
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49
sprout/math/atanh.hpp
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#ifndef SPROUT_MATH_ATANH_HPP
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#define SPROUT_MATH_ATANH_HPP
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#include <limits>
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/math/log.hpp>
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#include <sprout/utility/enabler_if.hpp>
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#if SPROUT_USE_BUILTIN_CMATH_FUNCTION
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# include <cmath>
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#endif
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namespace sprout {
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namespace math {
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namespace detail {
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template<
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typename FloatType,
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typename sprout::enabler_if<std::is_floating_point<FloatType>::value>::type = sprout::enabler
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>
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inline SPROUT_CONSTEXPR FloatType
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atanh(FloatType x) {
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return x < -1 || x > 1 ? std::numeric_limits<FloatType>::quiet_NaN()
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: x == -1 ? -std::numeric_limits<FloatType>::infinity()
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: x == 1 ? std::numeric_limits<FloatType>::infinity()
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: sprout::math::detail::log((1 + x) / (1 - x)) / 2
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;
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}
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template<
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typename IntType,
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typename sprout::enabler_if<std::is_integral<IntType>::value>::type = sprout::enabler
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>
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inline SPROUT_CONSTEXPR double
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atanh(IntType x) {
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return sprout::math::detail::atanh(static_cast<double>(x));
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}
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} // namespace detail
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# if SPROUT_USE_BUILTIN_CMATH_FUNCTION
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using std::atanh;
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# else
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using sprout::math::detail::atanh;
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# endif
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} // namespace math
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using sprout::math::atanh;
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} // namespace sprout
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#endif // #ifndef SPROUT_MATH_ATANH_HPP
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@ -4,5 +4,8 @@
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#include <sprout/math/sinh.hpp>
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#include <sprout/math/cosh.hpp>
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#include <sprout/math/tanh.hpp>
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#include <sprout/math/asinh.hpp>
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#include <sprout/math/acosh.hpp>
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#include <sprout/math/atanh.hpp>
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#endif // #ifndef SPROUT_MATH_HYPERBOLIC_HPP
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