plan9 man page for floor

FLOOR(2)							System Calls Manual							  FLOOR(2)

NAME
       fabs, fmod, floor, ceil - absolute value, remainder, floor, ceiling functions

SYNOPSIS
       #include <u.h>
       #include <libc.h>

       double floor(double x)

       double ceil(double x)

       double fabs(double x)

       double fmod(double x, double y)

DESCRIPTION
       Fabs returns the absolute value |x|.

       Floor returns the largest integer not greater than x.

       Ceil returns the smallest integer not less than x.

       Fmod returns x if y is zero, otherwise the number f with the same sign as x, such that x = iy + f for some integer i, and |f| < |y|.

SOURCE
       /sys/src/libc/port

SEE ALSO
       abs(2), frexp(2)

																	  FLOOR(2)