cabs, cabsf, cabsl − absolute value of a complex number
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.
For an explanation of the terms used in this section, see attributes(7).
The function is actually an alias for hypot(a, b) (or, equivalently, sqrt(a*a + b*b)).
abs(3), cimag(3), hypot(3), complex(7)
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