fmod.3

UNIX v6源代码 这几乎是最经典的unix版本 unix操作系统设计和莱昂氏unix源代码分析都是用的该版

.th FMOD III 2/13/75
.sh NAME
fmod \*- floating modulo function
.sh SYNOPSIS
.ft B
.nf
double fmod(x, y)
double x, y;
.ft R
.fi
.sh DESCRIPTION
.if t .ds L \(<=
.if n .ds L <_
.it Fmod
returns the number
.it f
such that
.it "x = iy + f,"
.it i
is an integer,
and
0 \*L
.it f
<
.it y.
.sh BUGS