@(#)floor.3 6.1 (Berkeley) 05/15/85

.AT 3 fabs, floor, ceil - absolute value, floor, ceiling functions

 #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)