function
<cmath> <ctgmath>
tanh
double tanh (double x); float tanhf (float x);long double tanhl (long double x);
double tanh (double x); float tanh (float x);long double tanh (long double x); double tanh (T x); // additional overloads for integral types
Compute hyperbolic tangent
Returns the hyperbolic tangent of x.
Header
<tgmath.h> provides a type-generic macro version of this function.
Parameters
- x
- Value representing a hyperbolic angle.
Return Value
Hyperbolic tangent of x.
Example
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/* tanh example */
#include <stdio.h> /* printf */
#include <math.h> /* tanh, log */
int main ()
{
double param, result;
param = log(2.0);
result = tanh (param);
printf ("The hyperbolic tangent of %f is %f.\n", param, result);
return 0;
}
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Output:
The hyperbolic tangent of 0.693147 is 0.600000.
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See also
- sinh
- Compute hyperbolic sine (function)
- cosh
- Compute hyperbolic cosine (function)