E.V.E
v2023.02.15

◆ rayleigh_skewness

eve::rayleigh_skewness = {}
inlineconstexpr

Callable object computing the Rayleigh skewness value : \(2\sqrt\pi(\pi-3)/(4-\pi^{3/2})\).

Defined in Header

#include <eve/module/math.hpp>

Callable Signatures

namespace eve
{
template< eve::value T >
T rayleigh_skewness(as<T> x) noexcept;
}
constexpr callable_rayleigh_skewness_ rayleigh_skewness
Callable object computing the Rayleigh skewness value : .
Definition: rayleigh_skewness.hpp:50
Definition: abi.hpp:18
Lightweight type-wrapper.
Definition: as.hpp:29

Parameters

  • x : Type wrapper instance embedding the type of the constant.

Return value

The call eve::rayleigh_skewness(as<T>()) returns the Rayleigh skewness.

Example

#include <eve/module/math.hpp>
#include <eve/wide.hpp>
#include <iostream>
#include <iomanip>
using wide_ft = eve::wide<float>;
using wide_dt = eve::wide<double>;
int main()
{
wide_ft wxf;
wide_dt wxd;
std::cout << "---- simd" << std::setprecision(9) << std::endl
<< "-> rayleigh_skewness(as<wide_ft>()) = " << eve::rayleigh_skewness(eve::as<wide_ft>()) << std::endl
<< "-> rayleigh_skewness(as(wxf)) = " << eve::rayleigh_skewness(eve::as(wxf)) << std::endl
<< "-> upward(rayleigh_skewness)(as<wide_ft>()) = " << eve::upward(eve::rayleigh_skewness)(eve::as<wide_ft>()) << std::endl
<< "-> upward(rayleigh_skewness)(as(wxf)) = " << eve::upward(eve::rayleigh_skewness)(eve::as(wxf)) << std::endl
<< "-> downward(rayleigh_skewness)(as<wide_ft>()) = " << eve::downward(eve::rayleigh_skewness)(eve::as<wide_ft>()) << std::endl
<< "-> downward(rayleigh_skewness)(as(wxf)) = " << eve::downward(eve::rayleigh_skewness)(eve::as(wxf)) << std::endl
<< std::setprecision(17)
<< "-> rayleigh_skewness(as<wide_dt>()) = " << eve::rayleigh_skewness(eve::as<wide_dt>()) << std::endl
<< "-> rayleigh_skewness(as(wxd)) = " << eve::rayleigh_skewness(eve::as(wxd)) << std::endl
<< "-> upward(rayleigh_skewness)(as<wide_dt>()) = " << eve::upward(eve::rayleigh_skewness)(eve::as<wide_dt>()) << std::endl
<< "-> upward(rayleigh_skewness)(as(wxd)) = " << eve::upward(eve::rayleigh_skewness)(eve::as(wxd)) << std::endl
<< "-> downward(rayleigh_skewness)(as<wide_dt>()) = " << eve::downward(eve::rayleigh_skewness)(eve::as<wide_dt>()) << std::endl
<< "-> downward(rayleigh_skewness)(as(wxd)) = " << eve::downward(eve::rayleigh_skewness)(eve::as(wxd)) << std::endl;
float xf;
double xd;
std::cout << "---- scalar" << std::endl
<< "-> rayleigh_skewness(as<float>()) = " << eve::rayleigh_skewness(eve::as(float())) << std::endl
<< "-> rayleigh_skewness(as<xf)) = " << eve::rayleigh_skewness(eve::as(xf)) << std::endl
<< "-> rayleigh_skewness(as<double>()) = " << eve::rayleigh_skewness(eve::as(double()))<< std::endl
<< "-> rayleigh_skewness(as<xd)) = " << eve::rayleigh_skewness(eve::as(xd)) << std::endl;
return 0;
}
constexpr upward_type const upward
Higher-order Callable Object imbuing upward rounding semantic onto other Callable Objects.
Definition: roundings.hpp:160
constexpr downward_type const downward
Higher-order Callable Object imbuing rounding downard semantic onto other Callable Objects.
Definition: roundings.hpp:161
Wrapper for SIMD registers.
Definition: wide.hpp:65