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comparison scripts/linear-algebra/onenormest.m @ 11471:994e2a93a8e2

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Use uppercase 'A' to refer to matrix inputs in m-files.
author Rik <octave@nomad.inbox5.com>
date Sun, 09 Jan 2011 16:01:05 -0800
parents 693e22af08ae
children fd0a3ac60b0e
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11470:eb9e0b597d61 11471:994e2a93a8e2
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, see 16 ## along with Octave; see the file COPYING. If not, see
17 ## <http://www.gnu.org/licenses/>. 17 ## <http://www.gnu.org/licenses/>.
18 18
19 ## -*- texinfo -*- 19 ## -*- texinfo -*-
20 ## @deftypefn {Function File} {[@var{est}, @var{v}, @var{w}, @var{iter}] =} onenormest (@var{a}, @var{t}) 20 ## @deftypefn {Function File} {[@var{est}, @var{v}, @var{w}, @var{iter}] =} onenormest (@var{A}, @var{t})
21 ## @deftypefnx {Function File} {[@var{est}, @var{v}, @var{w}, @var{iter}] =} onenormest (@var{apply}, @var{apply_t}, @var{n}, @var{t}) 21 ## @deftypefnx {Function File} {[@var{est}, @var{v}, @var{w}, @var{iter}] =} onenormest (@var{apply}, @var{apply_t}, @var{n}, @var{t})
22 ## 22 ##
23 ## Apply Higham and Tisseur's randomized block 1-norm estimator to 23 ## Apply Higham and Tisseur's randomized block 1-norm estimator to
24 ## matrix @var{a} using @var{t} test vectors. If @var{t} exceeds 5, then 24 ## matrix @var{A} using @var{t} test vectors. If @var{t} exceeds 5, then
25 ## only 5 test vectors are used. 25 ## only 5 test vectors are used.
26 ## 26 ##
27 ## If the matrix is not explicit, e.g., when estimating the norm of 27 ## If the matrix is not explicit, e.g., when estimating the norm of
28 ## @code{inv (@var{A})} given an LU factorization, @code{onenormest} applies 28 ## @code{inv (@var{A})} given an LU factorization, @code{onenormest} applies
29 ## @var{A} and its conjugate transpose through a pair of functions 29 ## @var{A} and its conjugate transpose through a pair of functions