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Create a branch for audio work

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svn path=/branches/audio-bringup/; revision=49478
This commit is contained in:
Timo Kreuzer 2010-11-05 11:04:48 +00:00
parent 26c20f3857
commit 5eb25b5c24
20759 changed files with 0 additions and 1141005 deletions
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20
lib/sdk/crt/math/tanh.c Normal file
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/* Copyright (C) 1994 DJ Delorie, see COPYING.DJ for details */
#include <math.h>
/*
* @implemented
*/
double tanh(double x)
{
if (x > 50)
return 1;
else if (x < -50)
return -1;
else
{
const double ebig = exp(x);
const double esmall = 1.0/ebig;
return (ebig - esmall) / (ebig + esmall);
}
}