kyosu v0.1.0
Complex Without Complexes
 
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◆ erfcx

kyosu::erfcx = {}
inlineconstexpr

Computes the normalized complementary error function \( \displaystyle \mbox{erfcx}(x) = e^{x^2} \mbox{erfc}(x)\).

Defined in Header

#include <kyosu/functions.hpp>

Callable Signatures

namespace kyosu
{
template<eve::ordered_value T> constexpr auto erfcx(T z) noexcept; //1
template<kyosu::concepts::cayley_dickson T> constexpr auto erfcx(T z) noexcept; //2
}
constexpr tags::callable_erfcx erfcx
Computes the normalized complementary error function .
Definition: erfcx.hpp:79
Main KYOSU namespace.
Definition: types.hpp:14

Parameters

  • z : Value to process.

Return value

  1. a real input z return eve::erfcx(z).
  2. The value of the normalized complementary error function is returned.

Example

#include <kyosu/kyosu.hpp>
#include <eve/wide.hpp>
#include <iostream>
int main()
{
using wide_ft = eve::wide <float, eve::fixed<4>>;
wide_ft ref1 = { 3.0f, 2.0f, 1.0f, 0.5f};
wide_ft imf1 = { 2.0f , -1.0, -5.0, 0.0};
wide_ft ref2 = { 0.0, 1.0, 2.0, 3.0};
auto zc = kyosu::complex_t<wide_ft>(ref1, imf1);
std::cout
<< "---- simd" << std::endl
<< "<- zc = " << zc << std::endl
<< "-> erfcx(zc) = " << kyosu::erfcx(zc)<< std::endl
<< "-> erfcx(ref2) = " << kyosu::erfcx(ref2) << std::endl;
return 0;
}
as_cayley_dickson_n_t< 2, T > complex_t
Type alias for complex numbers.
Definition: complex.hpp:27