E.V.E  0.1-beta

◆ acsch

eve::acsch = {}
inlineconstexpr

Callable object computing acsch: \(\log(1/x+\sqrt{1/x^2+1})\).

Required header: #include <eve/function/acsch.hpp>

Members Functions

Member Effect
operator() the computation of acsch
operator[] Construct a conditional version of current function object

auto operator()(floating_value auto x) const noexcept;
Definition: value.hpp:83

Parameters

x: floating real value.

Return value

Returns the elementwise inverse hyperbolic cosine of the input. The inverse hyperbolic sine is semantically equivalent to \(\log(1/x+\sqrt{1/x^2+1})\).

In particular:

  • If the element is \(\pm\infty\), \(\pm0\) returned.
  • If the element is \(\pm1\), \(\pm\infty\) is returned.
  • If the element does not belong \(]0,1[\), NaN is returned.

auto operator[]( conditional_expression auto cond ) const noexcept;

Higher-order function generating a masked version of eve::acsch

Parameters

cond : conditional expression

Return value

A Callable object so that the expression acsch[cond](x, ...) is equivalent to if_else(cond,acsch(x, ...),x)


Supported decorators

Example

See it live on Compiler Explorer

#include <eve/function/acsch.hpp>
#include <eve/wide.hpp>
#include <eve/constant/inf.hpp>
#include <eve/constant/nan.hpp>
#include <iostream>
int main()
{
wide_ft pf = {1.0f, 2.0f, eve::inf(eve::as<float>()), 0.5f};
std::cout << "---- simd" << '\n'
<< "<- pf = " << pf << '\n'
<< "-> acsch(pf) = " << eve::acsch(pf) << '\n';
float xf = 1.0f;
std::cout << "---- scalar" << '\n'
<< "<- xf = " << xf << '\n'
<< "-> acsch(xf) = " << eve::acsch(xf) << '\n';
return 0;
}
constexpr callable_inf_ inf
Callable object computing the infinity ieee value.
Definition: inf.hpp:54
constexpr callable_acsch_ acsch
Callable object computing acsch: .
Definition: acsch.hpp:83
Lightweight type-wrapper.
Definition: as.hpp:29
Wrapper for SIMD registers.
Definition: wide.hpp:65