E.V.E  0.1-beta

◆ atanh

eve::atanh = {}
inlineconstexpr

Callable object computing atanh: \(\frac{1}{2}\log((1+x)/(1-x))\).

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

Members Functions

Member Effect
operator() the computation of atanh
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 cotangent of the input. The inverse hyperbolic sine is semantically equivalent to \(\frac{1}{2}\log((1+x)/(1-x))\).

In particular:

  • If the element is \(\pm1\), \(\pm\infty\) is returned.
  • If the element is \(\pm0\), \(\pm0\) is returned.
  • If the element is greater than one or a NaN, NaN is returned.

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

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

Parameters

cond : conditional expression

Return value

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


Supported decorators

Example

See it live on Compiler Explorer

#include <eve/function/atanh.hpp>
#include <eve/wide.hpp>
#include <iostream>
int main()
{
wide_ft pf = {1.0f, 0.5f, 0.0, -0.5};
std::cout << "---- simd" << '\n'
<< "<- pf = " << pf << '\n'
<< "-> atanh(pf) = " << eve::atanh(pf) << '\n';
float xf = 1.0f;
std::cout << "---- scalar" << '\n'
<< "<- xf = " << xf << '\n'
<< "-> atanh(xf) = " << eve::atanh(xf) << '\n';
return 0;
}
constexpr callable_atanh_ atanh
Callable object computing atanh: .
Definition: atanh.hpp:83
Wrapper for SIMD registers.
Definition: wide.hpp:65