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1.24 fmin, fminf—minimum

Synopsis 

     #include <math.h>
     double fmin(double x, double y);
     float fminf(float x, float y);

Description
The fmin functions determine the minimum numeric value of their arguments. NaN arguments are treated as missing data: if one argument is a NaN and the other numeric, then the fmin functions choose the numeric value.
Returns
The fmin functions return the minimum numeric value of their arguments.
Portability
ANSI C, POSIX.