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c:math.h:tanh

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c:math.h:tanh [2013/01/22 22:02] (current)
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 +{{keywords>wiki library source code example reference}}
 +===== tanh =====
 +<code c>
 +    double tanh(double);
 +</code>
 +Returns hyperbolic tangent of a radian angle x. 
 +
 +===== C Sourcecode Example =====
 +compile with tanh.c -o tanh **-lm**
 +<code c>
 +#include <stdio.h> /* including standard library */
 +//#include <windows.h> /* uncomment this for Windows */
 +
 +#include <math.h> /* including math library */
 +
 +int main( void )
 +{
 +    double x;
 +    x = log(42);
 +    printf ("hyperbolic tangent of 42 is %lf\n", tanh (x) );
 +    return 0;
 +}
 +</code>
 +
 +==== output ====
 +   output:
 +   user@host:~$ ./tanh 
 +   hyperbolic tangent of 42 is 0.998867
 +
  
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c/math.h/tanh.txt · Last modified: 2013/01/22 22:02 (external edit)

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