Add a useful package (from Source forge) for octave

[CreaPhase.git] / octave_packages / nurbs-1.3.6 / vecdot.m

diff --git a/octave_packages/nurbs-1.3.6/vecdot.m b/octave_packages/nurbs-1.3.6/vecdot.m
new file mode 100644 (file)
index 0000000..ad67005
--- /dev/null
+++ b/octave_packages/nurbs-1.3.6/vecdot.m
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+function dot = vecdot(vec1,vec2)
+% 
+% VECDOT: The dot product of two vectors.
+% 
+% Calling Sequence:
+% 
+%   dot = vecdot(vec1,vec2);
+% 
+% INPUT:
+% 
+%   vec1       : An array of column vectors represented by a matrix of
+%   vec2       size (dim,nv), where is the dimension of the vector and
+%              nv the number of vectors.
+%
+% OUTPUT:
+%
+%   dot                : Row vector of scalars, each element corresponding to
+%              the dot product of the respective components in vec1 and
+%              vec2.
+% 
+% Description:
+% 
+%   Scalar dot product of two vectors.
+% 
+% Examples:
+% 
+%   Determine the dot product of
+%   (2.3,3.4,5.6) and (1.2,4.5,1.2)
+%   (5.1,0.0,2.3) and (2.5,3.2,4.0)
+%
+%   dot = vecdot([2.3 5.1; 3.4 0.0; 5.6 2.3],[1.2 2.5; 4.5 3.2; 1.2 4.0]);
+%
+%    Copyright (C) 2000 Mark Spink
+%
+%    This program is free software: you can redistribute it and/or modify
+%    it under the terms of the GNU General Public License as published by
+%    the Free Software Foundation, either version 2 of the License, or
+%    (at your option) any later version.
+
+%    This program 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 General Public License for more details.
+%
+%    You should have received a copy of the GNU General Public License
+%    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+dot = sum(vec1.*vec2);
+
+end