1FMOD(3)                    Linux Programmer's Manual                   FMOD(3)
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NAME

6       fmod, fmodf, fmodl - floating-point remainder function
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SYNOPSIS

9       #include <math.h>
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11       double fmod(double x, double y);
12       float fmodf(float x, float y);
13       long double fmodl(long double x, long double y);
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15       Link with -lm.
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DESCRIPTION

18       The  fmod()  function  computes  the remainder of dividing x by y.  The
19       return value is x - n * y, where n is the quotient of x  /  y,  rounded
20       towards zero to an integer.
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RETURN VALUE

23       The  fmod()  function returns the remainder, unless y is zero, when the
24       function fails and errno is set.
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ERRORS

27       EDOM   The denominator y is zero.
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CONFORMING TO

30       SVr4, 4.3BSD, C89.  The float and long double variants are C99 require‐
31       ments.
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SEE ALSO

34       remainder(3)
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38                                  2002-07-27                           FMOD(3)