E.V.E
v2023.02.15
 
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◆ agd

auto eve::agd = functor<agd_t>
inlineconstexpr

Header file

#include <eve/module/math.hpp>

Callable Signatures

namespace eve
{
// Regular overload
constexpr auto agd(floating_value auto x) noexcept; // 1
// Lanes masking
constexpr auto agd[conditional_expr auto c](floating_value auto x) noexcept; // 2
constexpr auto agd[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 agd
elementwise_callable object computing the inverse gudermannian, i.e. .
Definition agd.hpp:78
EVE Main Namespace.
Definition abi.hpp:18

Parameters

Return value

  1. Returns the elementwise inverse gudermannian of the input. In particular:
    • If the element is \(\pm0\), \(0\) is returned.
    • If the element is \(\pm\pi/2\), \(\infty\) is returned.
    • If the element is not in \([-\pi/2, \pi/2] \), NaN is returned.
  2. The operation is performed conditionnaly.

External references

Example

// revision 1
#include <eve/module/math.hpp>
#include <iostream>
int main()
{
std::cout << "<- wf = " << wf << "\n";
std::cout << "-> agd(wf) = " << eve::agd(wf) << "\n";
std::cout << "-> agd[ignore_last(2)](wf)= " << eve::agd[eve::ignore_last(2)](wf) << "\n";
std::cout << "-> agd[wf != -2.0f](wf) = " << eve::agd[wf != -2.0f](wf) << "\n";
}
constexpr auto pio_4
Callable object computing the constant .
Definition pio_4.hpp:77
constexpr auto pio_2
Callable object computing the constant .
Definition pio_2.hpp:77
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