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Returns zero if a is less than or equal to b

Otherwise, returns a - b //Declaration: float fdimf(float a, float b); double fdim(double a, double b); long double fdiml(long double a, long double b); //Return: returns zero if a is less than or equal to b. Otherwise, returns a - b. #include <math.h> #include <stdio.h> int main(void) { printf("%1.1f", fdimf (1.0, -1.0)); return 0; }