cosh


function template
<valarray> 
template<class T> valarray<T> cosh (const valarray<T>& x);

Compute hyperbolic cosine of valarray elements

Returns a valarray object containing the hyperbolic cosines of all the elements of x.

This function overloads cmath's cosh function.

Parameters

x
valarray containing elements of a type for which the unary function cosh is defined.


Return value

A valarray object with the hyperbolic cosine values of the elements of x.

Example

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// cosh valarray example
#include <iostream>
#include <cmath>
#include <valarray>
using namespace std;

int main ()
{
  double val[] = {0.35, 1.22, 3.4};
  valarray<double> foo (val,3);

  valarray<double> bar = cosh (foo);

  cout << "foo: ";
  for (size_t i=0; i<foo.size(); ++i)
	  cout << foo[i] << ' ';
  cout << endl;

  cout << "bar: ";
  for (size_t i=0; i<bar.size(); ++i)
	  cout << bar[i] << ' ';
  cout << endl;

  return 0;
}


Output:

foo: 0.35 1.22 3.4
bar: 1.06188 1.84121 14.9987


See also

cosh (cmath) Compute hyperbolic cosine (function)
sinh Compute hyperbolic sine of valarray elements (function template)
tanh Compute hyperbolic tangent of valarray elements (function template)