glenda.party
term% ls -F
term% pwd 
$home/manuals/unix_v8/3/floor
term% cat index.txt 
FLOOR(3M)                                                            FLOOR(3M)



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

SYNOPSIS
       #include <math.h>

       double floor(x)
       double x;

       double ceil(x)
       double x;

       double fabs(x)
       double x;

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.

SEE ALSO
       abs(3), frexp(3) for modf()




                                                                     FLOOR(3M)