cosh

auto eve::cosh = functor<cosh_t>

inlineconstexpr

Header file

#include <eve/module/math.hpp>

Callable Signatures

namespace eve
{
   // Regular overload
   constexpr auto cosh(floating_value auto x)                          noexcept; // 1
 
   // Lanes masking
   constexpr auto cosh[conditional_expr auto c](floating_value auto x) noexcept; // 2
   constexpr auto cosh[logical_value auto m](floating_value auto x)    noexcept; // 2
}

Parameters

• x: floating value.
• c: Conditional expression masking the operation.
• m: Logical value masking the operation.

Return value

1. Returns the elementwise hyperbolic cosine of the input. In particular:
   • If the element is \(\pm0\), \(1\) is returned.
   • If the element is \(\pm\infty\), \(+\infty\) is returned.
   • If the element is a NaN, NaN is returned.
2. The operation is performed conditionnaly.

External references

• C++ standard reference
• Wolfram MathWorld
• Wikipedia

Example

// revision 1
#include <eve/module/math.hpp>
#include <iostream>
 
int main()
{
  eve::wide wf = {0.0, 0.25, 0.5, 2.0, -0.0, -0.25,
                  eve::minf(eve::as<double>()), eve::nan(eve::as<double>())};
 
  std::cout << "<- wf                      = " << wf << "\n";
 
  std::cout << "-> cosh(wf)                = " << eve::cosh(wf) << "\n";
  std::cout << "-> cosh[ignore_last(2)](wf)= " << eve::cosh[eve::ignore_last(2)](wf) << "\n";
  std::cout << "-> cosh[wf > 0.0](wf)      = " << eve::cosh[wf > 0.0](wf) << "\n";
}