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man:cabsf

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

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

     These functions return 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.

ATTRIBUTES

     For  an  explanation  of  the  terms  used   in   this   section,   see
     attributes(7).
     allbox;  lbw24  lb  lb  l  l  l.   Interface Attribute Value T{ cabs(),
     cabsf(), cabsl() T}   Thread safety  MT-Safe

CONFORMING TO

     C99, POSIX.1-2001, POSIX.1-2008.

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 4.16 of the Linux man-pages project.  A
     description of the project, information about reporting bugs,  and  the
     latest     version     of     this    page,    can    be    found    at
     https://www.kernel.org/doc/man-pages/.
                                2015-04-19                           CABS(3)
/data/webs/external/dokuwiki/data/pages/man/cabsf.txt · Last modified: 2019/05/17 09:32 by 127.0.0.1

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