Section: Linux Programmer's Manual (3)
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cabs, cabsf, cabsl - absolute value of a complex number
double cabs(double complex z);
float cabsf(float complex z);
long double cabsl(long double complex z);
Link with -lm.
function returns the absolute value of the complex number
The result is a real number.
These functions first appeared in glibc in version 2.1.
The function is actually an alias for
sqrt(a*a + b*b)).
This page is part of release 3.27 of the Linux
A description of the project,
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