E.V.E
v2023.02.15
 
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◆ asinpi

auto eve::asinpi = functor<asinpi_t>
inlineconstexpr

Header file

#include <eve/module/math.hpp>

Callable Signatures

namespace eve
{
// Regular overload
constexpr auto asinpi(floating_value auto x) noexcept; // 1
// Lanes masking
constexpr auto asinpi[conditional_expr auto c](floating_value auto x) noexcept; // 2
constexpr auto asinpi[logical_value auto m](floating_value auto x) noexcept; // 2
}
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 asinpi
Callable object computing te arc sine in multiples.
Definition asinpi.hpp:78
EVE Main Namespace.
Definition abi.hpp:18

Parameters

External references

Return value

  1. Returns the elementwise value in \(\pi\) multiples of the arc sine of the input in the range \(]-\frac12, \frac12]\). In particular:
    • If the element is \(\pm0\), it is returned unmodified.
    • If the element \(|x| > 1\), NaN is returned.
    • If the element is a Nan, NaN is returned.
  2. The operation is performed conditionnaly.

Example

// revision 1
#include <eve/module/math.hpp>
#include <iostream>
int main()
{
eve::wide wf = { 0.0f, 0.99f, -1.0f, -0.5f, -0.0f, 0.25f, 1.0f, -2.0f};
std::cout << "<- wf = " << wf << "\n";
std::cout << "-> asinpi(wf) = " << eve::asinpi(wf) << "\n";
std::cout << "-> asinpi[ignore_last(2)](wf)= " << eve::asinpi[eve::ignore_last(2)](wf) << "\n";
std::cout << "-> asinpi[wf != -2.0f](wf) = " << eve::asinpi[wf != -2.0f](wf) << "\n";
}
Conditional expression ignoring the k last lanes from a eve::simd_value.
Definition conditional.hpp:332
Wrapper for SIMD registers.
Definition wide.hpp:70