tanh |
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tanh |
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tanh |
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tanh |
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double tanh( double x )
double x; /* a double value */
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Synopsis |
#include "math.h"
The tanh function calculates the hyperbolic tangent of x : (ex - e-x) / (ex + e-x).
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Parameters |
x is a double value.
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Return Value |
tanh returns the value calculated. If the absolute value of x is too large, then errno is set to ERANGE , and the value returned has magnitude equal to HUGE_VAL , with the same sign as x .
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See Also |
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