<valarray>
template<class T> valarray<T> tanh (const valarray<T>& x);
Compute hyperbolic tangent of valarray elements
Returns a valarray object containing the hyperbolic tangents of all the elements of x.
This function overloads cmath's tanh function.
Parameters
- x
- valarray containing elements of a type for which the unary function tanh is defined.
Return value
A valarray object with the hyperbolic tangent values of the elements of x.
Example
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
|
// tanh 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 = tanh (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: 0.335376 0.839654 0.997775
|
See also
| sinh | Compute hyperbolic sine of valarray elements (function template) |
| cosh | Compute hyperbolic cosine of valarray elements (function template) |
|