- NAME
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tanh - hyperbolic tangent function.
- SYNOPSIS
#include <math.h>
double tanh(double x);- DESCRIPTION
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The tanh() function returns the hyperbolic tangent of x, which is defined mathematically as
sinh(x) / cosh(x).
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Warning
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You’ll also need to link the program against the math library (see example below) using the -lm compile/link option.
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- SEE ALSO
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cosh, sinh
- EXAMPLE
link:src/tan.c[role=include]- OUTPUT
$ gcc -Wall -lm tanh.c $ ./a.out Hyperbolic tangent of 45.000000 degrees is 0.655794