E.V.E
v2023.02.15

◆ acot

eve::acot = {}
inlineconstexpr

Callable object computing the arc cotangent.

Defined in Header

#include <eve/module/math.hpp>

Callable Signatures

namespace eve
{
template< eve::floating_value T >
T acot(T x) noexcept; //1
template< eve::floating_value T >
}
constexpr callable_acot_ acot
Callable object computing the arc cotangent.
Definition: acot.hpp:64
Definition: abi.hpp:18
SIMD-compatible representation of complex numbers.
Definition: complex.hpp:39

Parameters

x: floating real value.

Return value

  1. Returns the elementwise arc cotangent of the input in the range \([-\frac\pi2, \frac\pi2]\).

    In particular:

    • If the element is \(\pm0\), \(\pm\frac\pi2\) is returned.
    • If the element is \(\pm\infty\), \(\pm0\) is returned.
    • If the element is a Nan, NaN is returned.
  2. Returns elementwise the complex principal value of the arc cotangent of the input as the arc tangent of the inverse of the input.

Example

#include <eve/module/math.hpp>
#include <eve/wide.hpp>
#include <iostream>
int main()
{
wide_ft pf = { 0.0f, 2.0f, -1.0f, -0.5f};
std::cout
<< "---- simd" << '\n'
<< "<- pf = " << pf << '\n'
<< "-> eve::acot(pf) = " << eve::acot(pf) << '\n'
;
float xf = 1.0f;
float yf = eve::inf(eve::as<float>());
std::cout
<< "---- scalar" << '\n'
<< "<- xf = " << xf << '\n'
<< "-> eve::acot(xf) = " << eve::acot(xf) << '\n'
<< "<- yf = " << yf << '\n'
<< "-> eve::acot(yf) = " << eve::acot(yf) << '\n';
return 0;
}
constexpr callable_inf_ inf
Computes the infinity ieee value.
Definition: inf.hpp:58
Lightweight type-wrapper.
Definition: as.hpp:29
Wrapper for SIMD registers.
Definition: wide.hpp:65