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comparison scripts/sparse/cgs.m @ 20164:df437a52bcaf stable

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doc: Update more docstrings to have one sentence summary as first line. Reviewed miscellaneous, sparse, strings in scripts directory. * scripts/miscellaneous/bzip2.m, scripts/miscellaneous/citation.m, scripts/miscellaneous/compare_versions.m, scripts/miscellaneous/computer.m, scripts/miscellaneous/debug.m, scripts/miscellaneous/dir.m, scripts/miscellaneous/edit.m, scripts/miscellaneous/error_ids.m, scripts/miscellaneous/fileattrib.m, scripts/miscellaneous/fullfile.m, scripts/miscellaneous/genvarname.m, scripts/miscellaneous/gzip.m, scripts/miscellaneous/mkoctfile.m, scripts/miscellaneous/news.m, scripts/miscellaneous/open.m, scripts/miscellaneous/parseparams.m, scripts/miscellaneous/recycle.m, scripts/miscellaneous/run.m, scripts/miscellaneous/swapbytes.m, scripts/miscellaneous/tar.m, scripts/miscellaneous/tmpnam.m, scripts/miscellaneous/unpack.m, scripts/miscellaneous/what.m, scripts/sparse/bicg.m, scripts/sparse/bicgstab.m, scripts/sparse/cgs.m, scripts/sparse/colperm.m, scripts/sparse/eigs.m, scripts/sparse/etreeplot.m, scripts/sparse/gmres.m, scripts/sparse/gplot.m, scripts/sparse/ichol.m, scripts/sparse/ilu.m, scripts/sparse/pcg.m, scripts/sparse/pcr.m, scripts/sparse/qmr.m, scripts/sparse/spaugment.m, scripts/sparse/spconvert.m, scripts/sparse/spdiags.m, scripts/sparse/spfun.m, scripts/sparse/spones.m, scripts/sparse/sprandsym.m, scripts/sparse/spstats.m, scripts/sparse/spy.m, scripts/sparse/svds.m, scripts/sparse/treelayout.m, scripts/sparse/treeplot.m, scripts/strings/base2dec.m, scripts/strings/bin2dec.m, scripts/strings/blanks.m, scripts/strings/cstrcat.m, scripts/strings/deblank.m, scripts/strings/dec2base.m, scripts/strings/dec2bin.m, scripts/strings/dec2hex.m, scripts/strings/findstr.m, scripts/strings/hex2dec.m, scripts/strings/index.m, scripts/strings/isletter.m, scripts/strings/isstrprop.m, scripts/strings/mat2str.m, scripts/strings/ostrsplit.m, scripts/strings/regexptranslate.m, scripts/strings/rindex.m, scripts/strings/str2num.m, scripts/strings/strcat.m, scripts/strings/strchr.m, scripts/strings/strjoin.m, scripts/strings/strjust.m, scripts/strings/strmatch.m, scripts/strings/strsplit.m, scripts/strings/strtok.m, scripts/strings/strtrim.m, scripts/strings/strtrunc.m, scripts/strings/substr.m, scripts/strings/untabify.m, scripts/time/datenum.m: Update more docstrings to have one sentence summary as first line.
author Rik <rik@octave.org>
date Mon, 04 May 2015 14:22:02 -0700
parents 0a3ca546d7fc
children
comparison
equal deleted inserted replaced
20163:075a5e2e1ba5 20164:df437a52bcaf
23 ## @deftypefnx {Function File} {[@var{x}, @var{flag}, @var{relres}, @var{iter}, @var{resvec}] =} cgs (@var{A}, @var{b}, @dots{}) 23 ## @deftypefnx {Function File} {[@var{x}, @var{flag}, @var{relres}, @var{iter}, @var{resvec}] =} cgs (@var{A}, @var{b}, @dots{})
24 ## Solve @code{A x = b}, where @var{A} is a square matrix, using the 24 ## Solve @code{A x = b}, where @var{A} is a square matrix, using the
25 ## Conjugate Gradients Squared method. 25 ## Conjugate Gradients Squared method.
26 ## 26 ##
27 ## @itemize @minus 27 ## @itemize @minus
28 ## @item @var{rtol} is the relative tolerance, if not given or set to [] 28 ## @item @var{rtol} is the relative tolerance, if not given or set to [] the
29 ## the default value 1e-6 is used. 29 ## default value 1e-6 is used.
30 ## 30 ##
31 ## @item @var{maxit} the maximum number of outer iterations, if not 31 ## @item @var{maxit} the maximum number of outer iterations, if not given or
32 ## given or set to [] the default value @code{min (20, numel (b))} is 32 ## set to [] the default value @code{min (20, numel (b))} is used.
33 ## used. 33 ##
34 ## 34 ## @item @var{x0} the initial guess, if not given or set to [] the default
35 ## @item @var{x0} the initial guess, if not given or set to [] the 35 ## value @code{zeros (size (b))} is used.
36 ## default value @code{zeros (size (b))} is used.
37 ## @end itemize 36 ## @end itemize
38 ## 37 ##
39 ## @var{A} can be passed as a matrix or as a function handle or 38 ## @var{A} can be passed as a matrix or as a function handle or inline
40 ## inline function @code{f} such that @code{f(x) = A*x}. 39 ## function @code{f} such that @code{f(x) = A*x}.
41 ## 40 ##
42 ## The preconditioner @var{P} is given as @code{P = M1 * M2}. 41 ## The preconditioner @var{P} is given as @code{P = M1 * M2}. Both @var{M1}
43 ## Both @var{M1} and @var{M2} can be passed as a matrix or as a function 42 ## and @var{M2} can be passed as a matrix or as a function handle or inline
44 ## handle or inline function @code{g} such that @code{g(x) = M1 \ x} or 43 ## function @code{g} such that @code{g(x) = M1 \ x} or @code{g(x) = M2 \ x}.
45 ## @code{g(x) = M2 \ x}.
46 ## 44 ##
47 ## If called with more than one output parameter 45 ## If called with more than one output parameter
48 ## 46 ##
49 ## @itemize @minus 47 ## @itemize @minus
50 ## @item @var{flag} indicates the exit status: 48 ## @item @var{flag} indicates the exit status: