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Functions HI-TECH C FABS
From HI-TECH C for CP/M Fan WIKI(EN)
FABS, CEIL, FLOOR
SYNOPSIS
#include <math.h> double fabs(double f) double ceil(double f) double floor(double f)
DESCRIPTION
These routines return respectively the absolute value of f, the smallest integral value not less than f, and the largest integral value not greater than f.