E.V.E
v2023.02.15
 
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◆ acsch

auto eve::acsch = functor<acsch_t>
inlineconstexpr

Header file

#include <eve/module/math.hpp>

Callable Signatures

namespace eve
{
// Regular overload
constexpr auto acsch(floating_value auto x) noexcept; // 1
// Lanes masking
constexpr auto acsch[conditional_expr auto c](floating_value auto x) noexcept; // 3
constexpr auto acsch[logical_value auto m](floating_value auto x) noexcept; // 3
}
Specifies that a type is a Conditional Expression.
Definition conditional.hpp:28
The concept floating_value<T> is satisfied if and only if T satisfies eve::value and the element type...
Definition value.hpp:116
The concept logical_value<T> is satisfied if and only if T satisfies eve::value and the element type ...
Definition value.hpp:132
constexpr auto acsch
elementwise_callable object computing the inverse hyperbolic cosecant, .
Definition acsch.hpp:79
EVE Main Namespace.
Definition abi.hpp:18

Parameters

Return value

  1. Returns the elementwise inverse hyperbolic cosecant of the input. For values in the domain x>1, the inverse hyperbolic cosecant 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.
  2. The operation is performed conditionnaly.

External references

Example

// revision 1
#include <eve/module/math.hpp>
#include <iostream>
int main()
{
eve::wide wf = {1.0f, 2.0f, eve::inf(eve::as<float>()), 0.5f};
std::cout << "<- wf = " << wf << "\n";
std::cout << "-> acsch(wf) = " << eve::acsch(wf) << "\n";
std::cout << "-> acsch[ignore_last(2)](wf)= " << eve::acsch[eve::ignore_last(2)](wf) << "\n";
std::cout << "-> acsch[wf != 2.0f](wf) = " << eve::acsch[wf != 2.0f](wf) << "\n";
}
constexpr auto inf
Computes the infinity ieee value.
Definition inf.hpp:66
Lightweight type-wrapper.
Definition as.hpp:29
Conditional expression ignoring the k last lanes from a eve::simd_value.
Definition conditional.hpp:332
Wrapper for SIMD registers.
Definition wide.hpp:70