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NAME

fabs — floating-point absolute value function

SYNOPSIS

#include <math.h>

double
fabs(double x);

RETURN VALUES

The fabs() function returns the absolute value of x.

SEE ALSO

abs(3), ceil(3), floor(3), rint(3), ieee(3), math.3

STANDARDS

The fabs() function conforms to ANSI X3.159-1989 (“ANSI C89”).