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CABS(3P)                   POSIX Programmer's Manual                  CABS(3P)




NAME

       cabs, cabsf - return a complex absolute value


SYNOPSIS

       #include <complex.h>

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



DESCRIPTION

       These  functions  compute the complex absolute value (also called norm,
       modulus, or magnitude) of z.


RETURN VALUE

       These functions return the complex absolute value.


ERRORS

       No errors are defined.

       The following sections are informative.


EXAMPLES

       None.


APPLICATION USAGE

       None.


RATIONALE

       None.


FUTURE DIRECTIONS

       None.


SEE ALSO

       The Base Definitions volume of IEEE Std 1003.1-2001, <complex.h>


COPYRIGHT

       Portions of this text are reprinted and reproduced in  electronic  form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       -- Portable Operating System Interface (POSIX),  The  Open  Group  Base
       Specifications  Issue  6,  Copyright  (C) 2001-2003 by the Institute of
       Electrical and Electronics Engineers, Inc and The Open  Group.  In  the
       event of any discrepancy between this version and the original IEEE and
       The Open Group Standard, the original IEEE and The Open Group  Standard
       is  the  referee document. The original Standard can be obtained online
       at http://www.opengroup.org/unix/online.html .



IEEE/The Open Group                  2003                             CABS(3P)