mirror of
https://github.com/lcn2/calc.git
synced 2025-08-16 01:03:29 +03:00
64 lines
1.7 KiB
Plaintext
64 lines
1.7 KiB
Plaintext
NAME
|
|
norm - calculate a norm of a value
|
|
|
|
SYNOPSIS
|
|
norm(x)
|
|
|
|
TYPES
|
|
If x is an object of type xx, the function xx_norm has to have been
|
|
defined; what this does will be determined by the definition.
|
|
|
|
For non-object x:
|
|
|
|
x number (real or complex)
|
|
|
|
return real
|
|
|
|
DESCRIPTION
|
|
For real x, norm(x) returns:
|
|
|
|
x^2.
|
|
|
|
For complex x, norm(x) returns:
|
|
|
|
re(x)^2 + im(x)^2.
|
|
|
|
EXAMPLE
|
|
; print norm(3.4), norm(-3.4), norm(3 + 4i), norm(4 - 5i)
|
|
11.56 11.56 25 41
|
|
|
|
LIMITS
|
|
none
|
|
|
|
LINK LIBRARY
|
|
void normvalue(VALUE *x, VALUE *result)
|
|
|
|
SEE ALSO
|
|
cmp, epsilon, hypot, abs, near, obj
|
|
|
|
## Copyright (C) 1999 Landon Curt Noll
|
|
##
|
|
## Calc is open software; you can redistribute it and/or modify it under
|
|
## the terms of the version 2.1 of the GNU Lesser General Public License
|
|
## as published by the Free Software Foundation.
|
|
##
|
|
## Calc is distributed in the hope that it will be useful, but WITHOUT
|
|
## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
|
|
## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
|
|
## Public License for more details.
|
|
##
|
|
## A copy of version 2.1 of the GNU Lesser General Public License is
|
|
## distributed with calc under the filename COPYING-LGPL. You should have
|
|
## received a copy with calc; if not, write to Free Software Foundation, Inc.
|
|
## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
##
|
|
## @(#) $Revision: 30.1 $
|
|
## @(#) $Id: norm,v 30.1 2007/03/16 11:10:42 chongo Exp $
|
|
## @(#) $Source: /usr/local/src/bin/calc/help/RCS/norm,v $
|
|
##
|
|
## Under source code control: 1995/10/25 04:03:46
|
|
## File existed as early as: 1995
|
|
##
|
|
## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
|
|
## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
|