EuroCD 3/EuroCD 3.iso/Programming/vbcc/machines/amigappc/libsrc/math/tanh.c

C/C++ Source or Header | 1998-06-24 | 122 b | 10 lines

#include <math.h>

double tanh(double x)
{
  double ex = exp(x);
  double emx = exp(-x);

  return ((ex-emx)/(ex+emx));
}