remainderf man page on CentOS

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REMAINDER(3)		   Linux Programmer's Manual		  REMAINDER(3)

NAME
       drem,  dremf, dreml, remainder, remainderf, remainderl - floating-point
       remainder function

SYNOPSIS
       #include <math.h>

       /* The C99 versions */
       double remainder(double x, double y);
       float remainderf(float x, float y);
       long double remainderl(long double x, long double y);

       /* Obsolete synonyms */
       double drem(double x, double y);
       float dremf(float x, float y);
       long double dreml(long double x, long double y);

       Link with -lm.

DESCRIPTION
       The remainder() function computes the remainder of  dividing  x	by  y.
       The  return  value is x - n * y, where n is the value x / y, rounded to
       the nearest integer.  If this quotient is 1/2 (mod 1), it is rounded to
       the nearest even number (independent of the current rounding mode).  If
       the return value is 0, it has the sign of x.

       The drem() function does precisely the same thing.

RETURN VALUE
       The remainder() function returns the remainder, unless y is zero,  when
       the function fails and errno is set.

ERRORS
       EDOM   The denominator y is zero.

CONFORMING TO
       IEC  60559.   The functions remainder(), remainderf(), and remainderl()
       are from C99.  The function drem() is from 4.3BSD. The float  and  long
       double  variants	 dremf()  and  dreml()	exist on some systems, such as
       Tru64 and glibc2.

EXAMPLE
       The call "remainder(29.0, 3.0)" returns -1.

SEE ALSO
       fmod(3), remquo(3)

				  2003-11-18			  REMAINDER(3)
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