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cabs, cabsf, cabsl - absolute value of a complex number
#include <complex.h> double cabs(double complex z); float cabsf(float complex z); long double cabsl(long double complex z); Link with -lm.
The cabs() function returns the absolute value of the complex number z. The result is a real number.
These functions first appeared in glibc in version 2.1.
The function is actually an alias for hypot(a, b) (or, equivalently, sqrt(a*a + b*b)).
This page is part of release 3.35 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://man7.org/linux/man- pages/. 2008-08-11 CABS(3)