cabs, cabsf, cabsl - absolute value of a complex number
double cabs(double complex
float cabsf(float complex
long double cabsl(long double complex
These functions return the absolute value of the complex number
z. The result is a real number.
These functions first appeared in glibc in version 2.1.
C99, POSIX.1-2001, POSIX.1-2008.
The function is actually an alias for
hypot(a, b) (or, equivalently,
sqrt(a*a + b*b)).
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