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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 3.35 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)