NAME | SYNOPSIS | DESCRIPTION | VERSIONS | CONFORMING TO | NOTES | SEE ALSO | COLOPHON

CABS(3)                       Linux Programmer's Manual                       CABS(3)

NAME         top

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

SYNOPSIS         top

       #include <complex.h>

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

       Link with -lm.

DESCRIPTION         top

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

VERSIONS         top

       These functions first appeared in glibc in version 2.1.

CONFORMING TO         top

       C99.

NOTES         top

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

SEE ALSO         top

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

COLOPHON         top

       This page is part of release 3.23 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)