Tgmath.h: Difference between revisions

Revision as of 08:49, 11 October 2011

Revision as of 09:16, 11 October 2011

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== Usage example ==

<source lang="c">

#include <stdio.h>

#include <tgmath.h>

int main()

{

float ang, ans;

scanf("%f", &ang);

ans = atan(ang);

printf("%f", ans);

return 0;

}</source lang = "c">

== Notable differences ==

The similar functions defined here have notable difference when it comes to return value of "tricky" numbers. For example, using sqrt to compute [[square root]] of -25 returns -[[NaN|nan]], whereas, csqrt returns 0.000000. Such differences may be noticed in other functions also.