◆ zeta
Callable object computing the the Riemann \(\zeta\) function: \(\displaystyle \zeta(s)=\sum_{n=0}^\infty \frac1{n^s}\). Required header: Members Functions
Definition: value.hpp:103 Parameters
Return value Returns elementwise \(\displaystyle \zeta(s)=\sum_{n=0}^\infty \frac1{n^s}\) For negative entries the computation is made using the reflection formula. The result type is of the same type as the parameter. auto operator[]( conditional_expression auto cond ) const noexcept;
Higher-order function generating a masked version of eve::zeta Parameters
Return value A Callable object so that the expression Supported decoratorsno decorators are supported ExampleSee it live on Compiler Explorer #include <eve/function/zeta.hpp>
#include <eve/wide.hpp>
#include <eve/constant/eps.hpp>
#include <eve/constant/inf.hpp>
#include <eve/constant/minf.hpp>
#include <eve/constant/nan.hpp>
#include <iostream>
using wide_ft = eve::wide<float, eve::fixed<8>>;
int main()
{
using eve::pedantic;
wide_ft pf = {0.0f, -1.0f, 1.0f, -1.5f, 1.5f, -2.0f, 2.0f, -12.0f};
std::cout << "---- simd" << '\n'
<< "<- pf = " << pf << '\n'
float xf = 2.0f;
std::cout << "---- scalar" << '\n'
<< "<- xf = " << xf << '\n'
return 0;
}
constexpr pedantic_type const pedantic Higher-order Callable Object imbuing more standard semantic onto other Callable Objects. Definition: pedantic.hpp:56 constexpr callable_zeta_ zeta Callable object computing the the Riemann function: . Definition: zeta.hpp:76 |