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NAME

       cabs, cabsf, cabsl - absolute value of a complex number

SYNOPSIS

       #include <complex.h>

       double cabs(double complex z);
       float cabsf(float complex z);
       long double cabsl(long double complex z);

       Link with -lm.

DESCRIPTION

       The cabs() function returns the absolute value of the complex number z.
       The result is a real number.

VERSIONS

       These functions first appeared in glibc in version 2.1.

CONFORMING TO

       C99.

NOTES

       The function is actually an alias for  hypot(a, b)  (or,  equivalently,
       sqrt(a*a + b*b)).

SEE ALSO

       abs(3), cimag(3), hypot(3), complex(7)

COLOPHON

       This  page  is  part of release 3.24 of the Linux man-pages project.  A
       description of the project, and information about reporting  bugs,  can
       be found at http://www.kernel.org/doc/man-pages/.

                                  2008-08-11                           CABS(3)