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



NAME
       hypot, hypotf, hypotl - Euclidean distance function

SYNOPSIS
       #include <&lt;math.h>&gt;

       double hypot(double x, double y);
       float hypotf(float x, float y);
       long double hypotl(long double x, long double y);

       Link with -lm.

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       hypot(), hypotf(), hypotl(): _BSD_SOURCE || _SVID_SOURCE ||
       _XOPEN_SOURCE >= 500 || _ISOC99_SOURCE; or cc -std=c99

DESCRIPTION
       The hypot() function returns sqrt(x*x+y*y).  This is the length of  the
       hypotenuse  of  a right-angle triangle with sides of length x and y, or
       the distance of the point (x,y) from the origin.

CONFORMING TO
       SVr4, 4.3BSD, C99.  The float and long double variants are C99 require-
       ments.

SEE ALSO
       cabs(3), sqrt(3)

COLOPHON
       This  page  is  part of release 3.05 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/.



                                  2007-07-26                          HYPOT(3)