.TH FLOOR 2
.SH NAME
fabs, fmod, floor, ceil \- absolute value, remainder, floor, ceiling functions
.SH SYNOPSIS
.B
double floor(double x)
.PP
.B
double ceil(double x)
.PP
.B
double fabs(double x)
.PP
.B
double fmod(double x, double y)
.SH DESCRIPTION
.I Fabs
returns the absolute value
.RI | \|x\| |.
.PP
.I Floor
returns the
largest integer
not greater than
.IR x .
.PP
.I Ceil
returns the
smallest integer
not less than
.IR x .
.PP
.I Fmod
returns
.I x
if
.I y
is zero, otherwise the number
.I f
with the same sign as
.IR x ,
such that
.I "x = iy + f"
for some integer
.IR i ,
and
.RI | \|f\| |
<
.RI | \|x\| |.
.SH SEE ALSO
.IR abs (2),
.IR frexp (2)
