Mercurial > octave-nkf
comparison doc/interpreter/sparse.txi @ 19074:0850b5212619
doc: Add @nospell macro around proper names in documentation.
* aspell-octave.en.pws: Remove proper names from Octave's custom dictionary.
* doc/interpreter/audio.txi, doc/interpreter/diagperm.txi,
doc/interpreter/diffeq.txi, doc/interpreter/emacs.txi,
doc/interpreter/func.txi, doc/interpreter/geometry.txi,
doc/interpreter/intro.txi, doc/interpreter/linalg.txi,
doc/interpreter/numbers.txi, doc/interpreter/preface.txi,
doc/interpreter/quad.txi, doc/interpreter/sparse.txi,
libinterp/corefcn/colloc.cc, libinterp/corefcn/ellipj.cc,
libinterp/corefcn/gammainc.cc, libinterp/corefcn/hess.cc,
libinterp/corefcn/quadcc.cc, libinterp/corefcn/rand.cc,
libinterp/corefcn/sqrtm.cc, libinterp/dldfcn/ccolamd.cc,
libinterp/dldfcn/colamd.cc, libinterp/dldfcn/dmperm.cc,
libinterp/dldfcn/symrcm.cc, scripts/general/quadgk.m, scripts/general/quadl.m,
scripts/linear-algebra/commutation_matrix.m, scripts/linear-algebra/condest.m,
scripts/linear-algebra/duplication_matrix.m, scripts/linear-algebra/expm.m,
scripts/linear-algebra/housh.m, scripts/linear-algebra/krylov.m,
scripts/linear-algebra/onenormest.m, scripts/linear-algebra/qzhess.m,
scripts/optimization/fminsearch.m, scripts/optimization/glpk.m,
scripts/signal/arch_fit.m, scripts/signal/bartlett.m,
scripts/signal/blackman.m, scripts/signal/diffpara.m,
scripts/signal/durbinlevinson.m, scripts/signal/hamming.m,
scripts/signal/hanning.m, scripts/sparse/eigs.m, scripts/sparse/pcg.m,
scripts/sparse/pcr.m, scripts/specfun/ellipke.m,
scripts/special-matrix/gallery.m, scripts/special-matrix/invhilb.m,
scripts/statistics/base/quantile.m,
scripts/statistics/tests/kruskal_wallis_test.m,
scripts/statistics/tests/manova.m, scripts/statistics/tests/mcnemar_test.m:
Add @nospell macro around proper names in documentation.
author | Rik <rik@octave.org> |
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date | Thu, 21 Aug 2014 15:57:18 -0700 |
parents | 9ac2357f19bc |
children | 38937efbee21 |
comparison
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19073:f45b60897316 | 19074:0850b5212619 |
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73 | 73 |
74 There are many different means of storing sparse matrix data. What all | 74 There are many different means of storing sparse matrix data. What all |
75 of the methods have in common is that they attempt to reduce the complexity | 75 of the methods have in common is that they attempt to reduce the complexity |
76 and storage given a priori knowledge of the particular class of problems | 76 and storage given a priori knowledge of the particular class of problems |
77 that will be solved. A good summary of the available techniques for storing | 77 that will be solved. A good summary of the available techniques for storing |
78 sparse matrix is given by Saad @footnote{Y. Saad "SPARSKIT: A basic toolkit | 78 sparse matrix is given by @nospell{Saad} @footnote{Y. Saad "SPARSKIT: A basic |
79 for sparse matrix computation", 1994, | 79 toolkit for sparse matrix computation", 1994, |
80 @url{http://www-users.cs.umn.edu/~saad/software/SPARSKIT/paper.ps}}. | 80 @url{http://www-users.cs.umn.edu/~saad/software/SPARSKIT/paper.ps}}. |
81 With full matrices, knowledge of the point of an element of the matrix | 81 With full matrices, knowledge of the point of an element of the matrix |
82 within the matrix is implied by its position in the computers memory. | 82 within the matrix is implied by its position in the computers memory. |
83 However, this is not the case for sparse matrices, and so the positions | 83 However, this is not the case for sparse matrices, and so the positions |
84 of the nonzero elements of the matrix must equally be stored. | 84 of the nonzero elements of the matrix must equally be stored. |
801 The band density is defined as the number of nonzero values in the band | 801 The band density is defined as the number of nonzero values in the band |
802 divided by the total number of values in the full band. The banded | 802 divided by the total number of values in the full band. The banded |
803 matrix solvers can be entirely disabled by using @dfn{spparms} to set | 803 matrix solvers can be entirely disabled by using @dfn{spparms} to set |
804 @code{bandden} to 1 (i.e., @code{spparms ("bandden", 1)}). | 804 @code{bandden} to 1 (i.e., @code{spparms ("bandden", 1)}). |
805 | 805 |
806 The QR@tie{}solver factorizes the problem with a Dulmage-Mendelsohn | 806 The QR@tie{}solver factorizes the problem with a @nospell{Dulmage-Mendelsohn} |
807 decomposition, to separate the problem into blocks that can be treated | 807 decomposition, to separate the problem into blocks that can be treated |
808 as over-determined, multiple well determined blocks, and a final | 808 as over-determined, multiple well determined blocks, and a final |
809 over-determined block. For matrices with blocks of strongly connected | 809 over-determined block. For matrices with blocks of strongly connected |
810 nodes this is a big win as LU@tie{}decomposition can be used for many | 810 nodes this is a big win as LU@tie{}decomposition can be used for many |
811 blocks. It also significantly improves the chance of finding a solution | 811 blocks. It also significantly improves the chance of finding a solution |