.th FLOOR III 5/31/77 .sh NAME floor, ceil \*- floor and ceiling functions .sh SYNOPSIS .br .ft B double floor(x) .br double x; .s3 double ceil(x) .br double x; .ft R .sh DESCRIPTION The floor function returns the largest integer (as a double precision number) not greater than \fBx\fR. .s3 The ceil function returns the smallest integer not less than \fBx\fR.