E.V.E
v2022.09.01

◆ sinc

eve::sinc = {}
inlineconstexpr

Callable object computing the sine cardinal.

Defined in Header

#include <eve/module/math.hpp>

Callable Signatures

namespace eve
{
template< eve::floating_value T >
T sinc(T x) noexcept;
}
constexpr callable_sinc_ sinc
Callable object computing the sine cardinal.
Definition: sinc.hpp:60
Definition: all_of.hpp:22

Parameters

x: floating value.

Return value

Returns the elementwise sine of the input divided by the input.

In particular:

  • If the element is \(\pm0\), \(1\) is returned.
  • If the element is \(\pm\infty\), 0 is returned.
  • If the element is a Nan, NaN is returned.

Example

#include <eve/module/math.hpp>
#include <eve/wide.hpp>
#include <iostream>
int main()
{
wide_ft pf = {1.0f, 0.0f, eve::inf(eve::as<float>()), eve::pi(eve::as<float>())};
std::cout << "---- simd" << '\n'
<< "<- pf = " << pf << '\n'
<< "-> sinc(pf) = " << eve::sinc(pf) << '\n';
float xf = 3.0f;
std::cout << "---- scalar" << '\n'
<< "<- xf = " << xf << '\n'
<< "-> sinc(xf) = " << eve::sinc(xf) << '\n';
return 0;
}
constexpr callable_inf_ inf
Computes the infinity ieee value.
Definition: inf.hpp:58
constexpr callable_pi_ pi
Callable object computing the constant .
Definition: pi.hpp:49
Lightweight type-wrapper.
Definition: as.hpp:29
Wrapper for SIMD registers.
Definition: wide.hpp:65

Semantic Modifiers