Name
hypot, hypotf, hypotl — Euclidean distance
function
Synopsis
#include <math.h>
double hypot( |
double |
x, |
|
double |
y) ; |
float
hypotf( |
float |
x, |
|
float |
y) ; |
long
double hypotl( |
long double |
x, |
|
long double |
y) ; |
![[Note]](../stylesheet/note.png) |
Note |
Link with −lm .
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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
requirements.
SEE ALSO
cabs(3), sqrt(3)
Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
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manual provided the copyright notice and this permission notice are
preserved on all copies.
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manual under the conditions for verbatim copying, provided that the
entire resulting derived work is distributed under the terms of a
permission notice identical to this one.
Since the Linux kernel and libraries are constantly changing, this
manual page may be incorrect or out-of-date. The author(s) assume no
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the use of the information contained herein. The author(s) may not
have taken the same level of care in the production of this manual,
which is licensed free of charge, as they might when working
professionally.
Formatted or processed versions of this manual, if unaccompanied by
the source, must acknowledge the copyright and authors of this work.
References consulted:
Linux libc source code
Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
386BSD man pages
Modified 1993-07-24 by Rik Faith (faith@cs.unc.edu)
Modified 2002-07-27 by Walter Harms
(walter.harms@informatik.uni-oldenburg.de)
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