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60 lines
1.6 KiB
Plaintext
60 lines
1.6 KiB
Plaintext
NAME
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dp - dot product of two vectors
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SYNOPSIS
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dp(x, y)
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TYPES
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x, y 1-dimensional matrices of the same size
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return depends on the nature of the elements of x and y
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DESCRIPTION
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Compute the dot product of two 1-dimensional matrices.
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Let:
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x = {x0, x1, ... xn}
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y = {y0, y1, ... yn}
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Then dp(x,y) returns the result of the calculation:
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x0*y0 + x1*y1 + ... + xn*yn
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EXAMPLE
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; mat x[3] = {2,3,4}
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; mat y[1:3] = {3,4,5}
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; print dp(x,y)
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38
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LIMITS
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none
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LINK LIBRARY
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VALUE matdot(MATRIX *x, MATRIX *y)
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SEE ALSO
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cp
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## Copyright (C) 1999 Landon Curt Noll
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##
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## Calc is open software; you can redistribute it and/or modify it under
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## the terms of the version 2.1 of the GNU Lesser General Public License
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## as published by the Free Software Foundation.
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##
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## Calc is distributed in the hope that it will be useful, but WITHOUT
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## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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## or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
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## Public License for more details.
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##
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## A copy of version 2.1 of the GNU Lesser General Public License is
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## distributed with calc under the filename COPYING-LGPL. You should have
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## received a copy with calc; if not, write to Free Software Foundation, Inc.
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## 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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##
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## Under source code control: 1995/10/05 04:52:26
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## File existed as early as: 1995
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##
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## chongo <was here> /\oo/\ http://www.isthe.com/chongo/
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## Share and enjoy! :-) http://www.isthe.com/chongo/tech/comp/calc/
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