cc [ flag ... ] file ... -lm [ library ... ] #include <math.h>
The tanh() function computes the hyperbolic tangent of x.
Upon successful completion, tanh() returns the hyperbolic tangent of x.
If x is NaN, NaN is returned.
See attributes(5) for descriptions of the following attributes:
atanh(3M), isnan(3M), tan(3M), attributes(5)
