FABS Section: Linux Programmer's Manual (3) Updated: June 25, 2025 Index   NAME fabs - absolute value of floating-point number   SYNOPSIS #include <math.h> double fabs(double x);   DESCRIPTION The fabs() function returns the absolute value of the floating-point number x.   CONFORMING TO SVID 3, POSIX, BSD 4.3, ISO 9899   SEE ALSO   Index NAME SYNOPSIS DESCRIPTION CONFORMING TO SEE ALSO This document was created by using the manual pages. Time: 11:58:03 GMT, March 24, 2025