HYPOT(3) Linux Programmers Manual HYPOT(3)
NAME
hypot, hypotf, hypotl  Euclidean distance function
SYNOPSIS
#include
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 rightangle 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 manpages project. A
description of the project, and information about reporting bugs, can
be found at http://www.kernel.org/doc/manpages/.
20070726 HYPOT(3)
