kyosu v0.1.0
Complex Without Complexes
 
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◆ expm1

kyosu::expm1 = {}
inlineconstexpr

Computes the exponential of the argument minus 1.

Defined in Header

#include <kyosu/functions.hpp>

Callable Signatures

namespace kyosu
{
template<kyosu::concepts::cayley_dickson T> constexpm1r T expm1(T z) noexcept;
template<eve::floating_ordered_value T> constexpm1r T expm1(T z) noexcept;
}
constexpr tags::callable_expm1 expm1
Computes the exponential of the argument minus 1.
Definition: expm1.hpp:74
Main KYOSU namespace.
Definition: types.hpp:14

Parameters

  • z: Value to process.

Return value

Returns the expm1onential of the argument minus 1. Provisions are made to ensure good precision near zero.

Example

#include <kyosu/kyosu.hpp>
#include <eve/wide.hpp>
#include <iostream>
int main()
{
using kyosu::expm1;
using e_t = float;
using we_t = eve::wide<e_t, eve::fixed<2>>;
using wc_t = eve::wide<c_t, eve::fixed<2>>;
using wq_t = eve::wide<q_t, eve::fixed<2>>;
std::cout << "Real: \n";
e_t e(2.9f);
we_t we = we_t(e);
std::cout << e << " -> " << expm1(e) << "\n";
std::cout << we << " -> " << expm1(we) << "\n";
std::cout << expm1(c_t(e))<< "\n";
std::cout << expm1(q_t(e))<< "\n";
std::cout << expm1(wc_t(e))<< "\n";
std::cout << expm1(wq_t(e))<< "\n";
std::cout << "Complex: \n";
c_t c(3.5f,-2.9f);
wc_t wc = wc_t(c);
std::cout << c << " -> " << expm1(c) << "\n";
std::cout << wc << " -> " << expm1(wc) << "\n";
std::cout << expm1(q_t(c))<< "\n";
std::cout << expm1(wq_t(c))<< "\n";
std::cout << "Quaternion: \n";
q_t q(3.5f,-2.9f, 2.1f, 3.2f);
wq_t wq = wq_t(q);
std::cout << q << " -> " << expm1(q) << "\n";
std::cout << wq << " -> " << expm1(wq) << "\n";
return 0;
}
as_cayley_dickson_n_t< 4, T > quaternion_t
Type alias for quaternion numbers.
Definition: quaternion.hpp:27
as_cayley_dickson_n_t< 2, T > complex_t
Type alias for complex numbers.
Definition: complex.hpp:27