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NAME
dp - dot product of two vectors
SYNOPSIS
dp(x, y)
TYPES
x, y 1-dimensional matrices of the same size
return depends on the nature of the elements of x and y
DESCRIPTION
Compute the dot product of two 1-dimensional matrices.
Let:
x = {x0, x1, ... xn}
y = {y0, y1, ... yn}
Then dp(x,y) returns the result of the calculation:
x0*y0 + x1*y1 + ... + xn*yn
EXAMPLE
; mat x[3] = {2,3,4}
; mat y[1:3] = {3,4,5}
; print dp(x,y)
38
LIMITS
none
LINK LIBRARY
VALUE matdot(MATRIX *x, MATRIX *y)
SEE ALSO
cp
## 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.
##
## Under source code control: 1995/10/05 04:52:26
## 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/
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