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#include <math.h> float tanh ( float x); /* value to calc hyperbolic tangent for */
The tanh function calculates the hyperbolic tangent for the floating-point value x.
The tanh function returns the hyperbolic tangent of x.
cosh, sinh
#include <math.h> #include <stdio.h> /* for printf */ void tst_tanh (void) { float x; float y; float pi; pi = 3.14159; for (x = -(pi/4); x < (pi/4); x += 0.1) { y = tanh (x); printf ("TANH(%f) = %f\n", x, y); } }
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