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comparison scripts/linear-algebra/orth.m @ 2311:2b5788792cad

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[project @ 1996-07-11 20:18:38 by jwe]
author jwe
date Thu, 11 Jul 1996 20:18:38 +0000
parents 5cffc4b8de57
children 204cc7db6f4a
comparison
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2310:e2a8f216373d 2311:2b5788792cad
15 ### You should have received a copy of the GNU General Public License 15 ### You should have received a copy of the GNU General Public License
16 ### along with Octave; see the file COPYING. If not, write to the Free 16 ### along with Octave; see the file COPYING. If not, write to the Free
17 ### Software Foundation, 59 Temple Place - Suite 330, Boston, MA 17 ### Software Foundation, 59 Temple Place - Suite 330, Boston, MA
18 ### 02111-1307, USA. 18 ### 02111-1307, USA.
19 19
20 ## usage: orth (A, tol)
21 ## orth (A)
22 ##
23 ## Returns an orthonormal basis of the range of A.
24 ##
25 ## The dimension of the range space is taken as the number of singular
26 ## values of A greater than tol; the default for tol is
27 ## max (size (A)) * sigma_max (A) * eps, where sigma_max (A) is the
28 ## maximal singular value of A.
29
20 function retval = orth (A, tol) 30 function retval = orth (A, tol)
21
22 ## usage: orth (A, tol)
23 ## orth (A)
24 ##
25 ## Returns an orthonormal basis of the range of A.
26 ##
27 ## The dimension of the range space is taken as the number of singular
28 ## values of A greater than tol; the default for tol is
29 ## max (size (A)) * sigma_max (A) * eps, where sigma_max (A) is the
30 ## maximal singular value of A.
31 31
32 ## Written by KH (Kurt.Hornik@ci.tuwien.ac.at) on Dec 24, 1993. 32 ## Written by KH (Kurt.Hornik@ci.tuwien.ac.at) on Dec 24, 1993.
33 33
34 [U, S, V] = svd (A); 34 [U, S, V] = svd (A);
35 35