1 ## Copyright (C) 2011 Thomas Weber <tweber@debian.org>
3 ## This program is free software; you can redistribute it and/or modify it under
4 ## the terms of the GNU General Public License as published by the Free Software
5 ## Foundation; either version 3 of the License, or (at your option) any later
8 ## This program is distributed in the hope that it will be useful, but WITHOUT
9 ## ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 ## FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
13 ## You should have received a copy of the GNU General Public License along with
14 ## this program; if not, see <http://www.gnu.org/licenses/>.
17 ## @deftypefn {Function File} {@var{x} =} normc (@var{M})
18 ## Normalize the columns of a matrix to a length of 1 and return the matrix.
41 %% test for real and complex matrices
44 %! expected = [0.316227766016838, 0.447213595499958;
45 %! 0.948683298050514, 0.894427190999916];
46 %! assert(normc(M), expected, eps);
49 %! M = [i,2*i; 3*I,4*I];
50 %! expected = [0.316227766016838*I, 0.447213595499958*I;
51 %! 0.948683298050514*I, 0.894427190999916*I];
52 %! assert(normc(M), expected, eps);
55 %! M = [1+2*I, 3+4*I; 5+6*I, 7+8*I];
56 %! expected = [0.123091490979333 + 0.246182981958665i, 0.255376959227625 + 0.340502612303499i;
57 %! 0.615457454896664 + 0.738548945875996i, 0.595879571531124 + 0.681005224606999i];
58 %! assert(normc(M), expected, 10*eps);
60 %% test error/usage handling
61 %!error <normc> normc();