Mercurial > octave-libtiff
view libinterp/dldfcn/__eigs__.cc @ 19593:446c46af4b42 stable
strip trailing whitespace from most source files
* Makefile.am, NEWS, build-aux/common.mk, configure.ac,
doc/Makefile.am, doc/doxyhtml/Makefile.am,
doc/interpreter/Makefile.am, doc/interpreter/arith.txi,
doc/interpreter/audio.txi, doc/interpreter/basics.txi,
doc/interpreter/bugs.txi, doc/interpreter/container.txi,
doc/interpreter/cp-idx.txi, doc/interpreter/data.txi,
doc/interpreter/debug.txi, doc/interpreter/diagperm.txi,
doc/interpreter/diffeq.txi, doc/interpreter/doccheck/README,
doc/interpreter/doccheck/spellcheck, doc/interpreter/emacs.txi,
doc/interpreter/errors.txi, doc/interpreter/eval.txi,
doc/interpreter/expr.txi, doc/interpreter/external.txi,
doc/interpreter/fn-idx.txi, doc/interpreter/func.txi,
doc/interpreter/geometry.txi, doc/interpreter/geometryimages.m,
doc/interpreter/gpl.txi, doc/interpreter/grammar.txi,
doc/interpreter/gui.txi, doc/interpreter/image.txi,
doc/interpreter/install.txi, doc/interpreter/interp.txi,
doc/interpreter/interpimages.m, doc/interpreter/intro.txi,
doc/interpreter/io.txi, doc/interpreter/java.txi,
doc/interpreter/linalg.txi, doc/interpreter/macros.texi,
doc/interpreter/matrix.txi, doc/interpreter/munge-texi.pl,
doc/interpreter/nonlin.txi, doc/interpreter/numbers.txi,
doc/interpreter/obsolete.txi, doc/interpreter/octave-config.1,
doc/interpreter/octave.texi, doc/interpreter/oop.txi,
doc/interpreter/op-idx.txi, doc/interpreter/optim.txi,
doc/interpreter/package.txi, doc/interpreter/plot.txi,
doc/interpreter/poly.txi, doc/interpreter/preface.txi,
doc/interpreter/quad.txi, doc/interpreter/set.txi,
doc/interpreter/signal.txi, doc/interpreter/sparse.txi,
doc/interpreter/sparseimages.m, doc/interpreter/splineimages.m,
doc/interpreter/stats.txi, doc/interpreter/stmt.txi,
doc/interpreter/strings.txi, doc/interpreter/system.txi,
doc/interpreter/testfun.txi, doc/interpreter/tips.txi,
doc/interpreter/var.txi, doc/interpreter/vectorize.txi,
doc/liboctave/Makefile.am, doc/liboctave/array.texi,
doc/liboctave/bugs.texi, doc/liboctave/cp-idx.texi,
doc/liboctave/dae.texi, doc/liboctave/diffeq.texi,
doc/liboctave/error.texi, doc/liboctave/factor.texi,
doc/liboctave/fn-idx.texi, doc/liboctave/gpl.texi,
doc/liboctave/install.texi, doc/liboctave/intro.texi,
doc/liboctave/liboctave.texi, doc/liboctave/matvec.texi,
doc/liboctave/nleqn.texi, doc/liboctave/nlfunc.texi,
doc/liboctave/ode.texi, doc/liboctave/optim.texi,
doc/liboctave/preface.texi, doc/liboctave/quad.texi,
doc/liboctave/range.texi, doc/refcard/Makefile.am,
doc/refcard/refcard.tex, etc/HACKING, etc/NEWS.1, etc/NEWS.2,
etc/NEWS.3, etc/OLD-ChangeLogs/ChangeLog,
etc/OLD-ChangeLogs/doc-ChangeLog,
etc/OLD-ChangeLogs/scripts-ChangeLog,
etc/OLD-ChangeLogs/src-ChangeLog, etc/OLD-ChangeLogs/test-ChangeLog,
etc/PROJECTS, etc/README.Cygwin, etc/README.MacOS, etc/README.MinGW,
etc/README.gnuplot, etc/gdbinit, etc/icons/Makefile.am,
examples/@polynomial/end.m, examples/@polynomial/subsasgn.m,
examples/Makefile.am, examples/standalonebuiltin.cc,
libgui/Makefile.am, libgui/qterminal/libqterminal/README,
libgui/qterminal/libqterminal/unix/BlockArray.cpp,
libgui/qterminal/libqterminal/unix/BlockArray.h,
libgui/qterminal/libqterminal/unix/Character.h,
libgui/qterminal/libqterminal/unix/CharacterColor.h,
libgui/qterminal/libqterminal/unix/Emulation.cpp,
libgui/qterminal/libqterminal/unix/Emulation.h,
libgui/qterminal/libqterminal/unix/Filter.cpp,
libgui/qterminal/libqterminal/unix/Filter.h,
libgui/qterminal/libqterminal/unix/History.cpp,
libgui/qterminal/libqterminal/unix/History.h,
libgui/qterminal/libqterminal/unix/KeyboardTranslator.cpp,
libgui/qterminal/libqterminal/unix/KeyboardTranslator.h,
libgui/qterminal/libqterminal/unix/LineFont.h,
libgui/qterminal/libqterminal/unix/QUnixTerminalImpl.cpp,
libgui/qterminal/libqterminal/unix/QUnixTerminalImpl.h,
libgui/qterminal/libqterminal/unix/Screen.cpp,
libgui/qterminal/libqterminal/unix/Screen.h,
libgui/qterminal/libqterminal/unix/ScreenWindow.cpp,
libgui/qterminal/libqterminal/unix/ScreenWindow.h,
libgui/qterminal/libqterminal/unix/TerminalCharacterDecoder.cpp,
libgui/qterminal/libqterminal/unix/TerminalCharacterDecoder.h,
libgui/qterminal/libqterminal/unix/Vt102Emulation.h,
libgui/qterminal/libqterminal/win32/QWinTerminalImpl.cpp,
libgui/qterminal/qterminal/main.cpp,
libgui/src/m-editor/file-editor-tab.cc, libgui/src/octave-gui.cc,
libgui/src/octave-qt-link.cc, libinterp/corefcn/data.cc,
libinterp/corefcn/defun-int.h, libinterp/corefcn/det.cc,
libinterp/corefcn/gl2ps-renderer.cc, libinterp/corefcn/graphics.cc,
libinterp/corefcn/graphics.in.h, libinterp/corefcn/ls-mat5.cc,
libinterp/corefcn/lu.cc, libinterp/corefcn/oct-tex-parser.yy,
libinterp/corefcn/oct-tex-symbols.in, libinterp/corefcn/quadcc.cc,
libinterp/corefcn/zfstream.cc, libinterp/dldfcn/__eigs__.cc,
libinterp/dldfcn/__voronoi__.cc, libinterp/gendoc.pl,
libinterp/genprops.awk, libinterp/mk-errno-list, libinterp/mk-pkg-add,
libinterp/mkbuiltins, libinterp/mkdefs, libinterp/mkdocs,
libinterp/mkops, libinterp/octave-value/ov-java.cc,
libinterp/parse-tree/lex.ll, libinterp/parse-tree/oct-parse.in.yy,
libinterp/parse-tree/octave.gperf, liboctave/Makefile.am,
liboctave/array/Array.cc, liboctave/array/module.mk,
liboctave/cruft/daspk/datv.f, liboctave/cruft/daspk/dcnst0.f,
liboctave/cruft/daspk/dcnstr.f, liboctave/cruft/daspk/ddasic.f,
liboctave/cruft/daspk/ddasid.f, liboctave/cruft/daspk/ddasik.f,
liboctave/cruft/daspk/ddaspk.f, liboctave/cruft/daspk/ddstp.f,
liboctave/cruft/daspk/ddwnrm.f, liboctave/cruft/daspk/dfnrmd.f,
liboctave/cruft/daspk/dfnrmk.f, liboctave/cruft/daspk/dhels.f,
liboctave/cruft/daspk/dheqr.f, liboctave/cruft/daspk/dinvwt.f,
liboctave/cruft/daspk/dlinsd.f, liboctave/cruft/daspk/dlinsk.f,
liboctave/cruft/daspk/dmatd.f, liboctave/cruft/daspk/dnedd.f,
liboctave/cruft/daspk/dnedk.f, liboctave/cruft/daspk/dnsd.f,
liboctave/cruft/daspk/dnsid.f, liboctave/cruft/daspk/dnsik.f,
liboctave/cruft/daspk/dnsk.f, liboctave/cruft/daspk/dorth.f,
liboctave/cruft/daspk/dslvd.f, liboctave/cruft/daspk/dslvk.f,
liboctave/cruft/daspk/dspigm.f, liboctave/cruft/daspk/dyypnw.f,
liboctave/cruft/dasrt/ddasrt.f, liboctave/cruft/dasrt/drchek.f,
liboctave/cruft/dassl/ddaslv.f, liboctave/cruft/dassl/ddassl.f,
liboctave/cruft/misc/blaswrap.c, liboctave/cruft/misc/module.mk,
liboctave/cruft/odepack/cfode.f, liboctave/cruft/odepack/dlsode.f,
liboctave/cruft/odepack/ewset.f, liboctave/cruft/odepack/intdy.f,
liboctave/cruft/odepack/prepj.f, liboctave/cruft/odepack/sintdy.f,
liboctave/cruft/odepack/slsode.f, liboctave/cruft/odepack/solsy.f,
liboctave/cruft/odepack/ssolsy.f, liboctave/cruft/odepack/stode.f,
liboctave/cruft/odepack/vnorm.f, liboctave/cruft/ranlib/Basegen.doc,
liboctave/cruft/ranlib/README, liboctave/cruft/ranlib/genbet.f,
liboctave/cruft/ranlib/genexp.f, liboctave/cruft/ranlib/gennch.f,
liboctave/cruft/ranlib/gennf.f, liboctave/cruft/ranlib/gennor.f,
liboctave/cruft/ranlib/getsd.f, liboctave/cruft/ranlib/initgn.f,
liboctave/cruft/ranlib/phrtsd.f, liboctave/cruft/ranlib/randlib.fdoc,
liboctave/cruft/ranlib/setsd.f, liboctave/cruft/ranlib/tstgmn.for,
liboctave/cruft/ranlib/tstmid.for, liboctave/cruft/slatec-fn/atanh.f,
liboctave/cruft/slatec-fn/datanh.f,
liboctave/cruft/slatec-fn/xgmainc.f,
liboctave/cruft/slatec-fn/xsgmainc.f, liboctave/numeric/module.mk,
liboctave/operators/mk-ops.awk, liboctave/operators/mx-ops,
liboctave/operators/sparse-mk-ops.awk,
liboctave/operators/sparse-mx-ops, liboctave/operators/vx-ops,
liboctave/util/module.mk, run-octave.in, scripts/@ftp/ftp.m,
scripts/audio/wavread.m, scripts/deprecated/java_convert_matrix.m,
scripts/deprecated/java_debug.m, scripts/deprecated/java_invoke.m,
scripts/deprecated/java_new.m,
scripts/deprecated/java_unsigned_conversion.m,
scripts/deprecated/javafields.m, scripts/deprecated/javamethods.m,
scripts/deprecated/shell_cmd.m, scripts/general/accumarray.m,
scripts/general/display.m, scripts/general/fieldnames.m,
scripts/general/interp1.m, scripts/general/interp2.m,
scripts/general/interp3.m, scripts/general/isa.m,
scripts/general/methods.m, scripts/general/sortrows.m,
scripts/geometry/convhull.m, scripts/geometry/delaunay.m,
scripts/geometry/delaunay3.m, scripts/geometry/delaunayn.m,
scripts/geometry/griddata.m, scripts/geometry/griddatan.m,
scripts/geometry/voronoi.m, scripts/geometry/voronoin.m,
scripts/gui/guihandles.m, scripts/gui/inputdlg.m,
scripts/gui/listdlg.m, scripts/gui/msgbox.m, scripts/gui/questdlg.m,
scripts/gui/uigetfile.m, scripts/gui/waitbar.m, scripts/gui/warndlg.m,
scripts/help/doc.m, scripts/help/help.m, scripts/help/type.m,
scripts/image/bone.m, scripts/image/cmpermute.m,
scripts/image/cmunique.m, scripts/image/colorcube.m,
scripts/image/colormap.m, scripts/image/contrast.m,
scripts/image/gray2ind.m, scripts/image/image.m,
scripts/image/imshow.m, scripts/image/ind2gray.m, scripts/image/jet.m,
scripts/image/rgb2ntsc.m, scripts/image/spinmap.m,
scripts/io/importdata.m, scripts/io/strread.m, scripts/io/textread.m,
scripts/io/textscan.m, scripts/java/java_get.m,
scripts/java/java_set.m, scripts/java/javaaddpath.m,
scripts/java/javaclasspath.m, scripts/java/javamem.m,
scripts/linear-algebra/linsolve.m, scripts/linear-algebra/qzhess.m,
scripts/miscellaneous/debug.m, scripts/miscellaneous/desktop.m,
scripts/miscellaneous/dir.m, scripts/miscellaneous/dos.m,
scripts/miscellaneous/edit.m, scripts/miscellaneous/fact.m,
scripts/miscellaneous/getappdata.m, scripts/miscellaneous/inputname.m,
scripts/miscellaneous/license.m, scripts/miscellaneous/ls_command.m,
scripts/miscellaneous/run.m, scripts/miscellaneous/setfield.m,
scripts/miscellaneous/unix.m, scripts/miscellaneous/ver.m,
scripts/mk-pkg-add, scripts/mkdoc.pl,
scripts/optimization/fminsearch.m, scripts/optimization/optimset.m,
scripts/optimization/sqp.m, scripts/pkg/pkg.m,
scripts/pkg/private/create_pkgadddel.m,
scripts/pkg/private/fix_depends.m, scripts/pkg/private/install.m,
scripts/plot/appearance/axis.m, scripts/plot/appearance/box.m,
scripts/plot/appearance/clabel.m, scripts/plot/appearance/daspect.m,
scripts/plot/appearance/datetick.m, scripts/plot/appearance/grid.m,
scripts/plot/appearance/legend.m, scripts/plot/appearance/orient.m,
scripts/plot/appearance/shading.m, scripts/plot/appearance/text.m,
scripts/plot/appearance/title.m, scripts/plot/appearance/xlabel.m,
scripts/plot/appearance/ylabel.m, scripts/plot/appearance/zlabel.m,
scripts/plot/draw/area.m, scripts/plot/draw/bar.m,
scripts/plot/draw/barh.m, scripts/plot/draw/colorbar.m,
scripts/plot/draw/contour.m, scripts/plot/draw/contour3.m,
scripts/plot/draw/contourf.m, scripts/plot/draw/ellipsoid.m,
scripts/plot/draw/errorbar.m, scripts/plot/draw/ezcontour.m,
scripts/plot/draw/ezcontourf.m, scripts/plot/draw/ezmesh.m,
scripts/plot/draw/ezpolar.m, scripts/plot/draw/fill.m,
scripts/plot/draw/fplot.m, scripts/plot/draw/hist.m,
scripts/plot/draw/meshc.m, scripts/plot/draw/meshz.m,
scripts/plot/draw/pareto.m, scripts/plot/draw/patch.m,
scripts/plot/draw/peaks.m, scripts/plot/draw/pie.m,
scripts/plot/draw/pie3.m, scripts/plot/draw/plot.m,
scripts/plot/draw/plotyy.m, scripts/plot/draw/private/__bar__.m,
scripts/plot/draw/private/__contour__.m,
scripts/plot/draw/private/__errplot__.m,
scripts/plot/draw/private/__ezplot__.m,
scripts/plot/draw/private/__patch__.m,
scripts/plot/draw/private/__stem__.m, scripts/plot/draw/rectangle.m,
scripts/plot/draw/ribbon.m, scripts/plot/draw/rose.m,
scripts/plot/draw/scatter.m, scripts/plot/draw/scatter3.m,
scripts/plot/draw/semilogx.m, scripts/plot/draw/shrinkfaces.m,
scripts/plot/draw/sombrero.m, scripts/plot/draw/sphere.m,
scripts/plot/draw/stairs.m, scripts/plot/draw/stem.m,
scripts/plot/draw/stemleaf.m, scripts/plot/draw/surf.m,
scripts/plot/draw/surface.m, scripts/plot/draw/surfc.m,
scripts/plot/draw/surfl.m, scripts/plot/draw/surfnorm.m,
scripts/plot/draw/tetramesh.m, scripts/plot/draw/trimesh.m,
scripts/plot/draw/triplot.m, scripts/plot/draw/trisurf.m,
scripts/plot/util/__gnuplot_drawnow__.m,
scripts/plot/util/__plt_get_axis_arg__.m, scripts/plot/util/axes.m,
scripts/plot/util/clf.m, scripts/plot/util/copyobj.m,
scripts/plot/util/figure.m, scripts/plot/util/gcbo.m,
scripts/plot/util/graphics_toolkit.m, scripts/plot/util/hggroup.m,
scripts/plot/util/meshgrid.m, scripts/plot/util/newplot.m,
scripts/plot/util/print.m,
scripts/plot/util/private/__add_default_menu__.m,
scripts/plot/util/private/__fltk_print__.m,
scripts/plot/util/private/__gnuplot_print__.m,
scripts/plot/util/private/__print_parse_opts__.m,
scripts/plot/util/refreshdata.m, scripts/plot/util/subplot.m,
scripts/polynomial/conv.m, scripts/polynomial/poly.m,
scripts/polynomial/polyeig.m, scripts/polynomial/polyfit.m,
scripts/polynomial/polyval.m,
scripts/polynomial/private/__splinefit__.m,
scripts/polynomial/spline.m, scripts/prefs/prefdir.m,
scripts/prefs/preferences.m, scripts/prefs/private/prefsfile.m,
scripts/prefs/rmpref.m, scripts/signal/freqz.m,
scripts/signal/module.mk, scripts/sparse/eigs.m, scripts/sparse/pcg.m,
scripts/sparse/private/__sprand_impl__.m, scripts/sparse/sprand.m,
scripts/sparse/sprandn.m, scripts/sparse/spy.m, scripts/sparse/svds.m,
scripts/specfun/expint.m, scripts/specfun/factor.m,
scripts/special-matrix/gallery.m, scripts/special-matrix/hankel.m,
scripts/special-matrix/toeplitz.m, scripts/startup/inputrc,
scripts/statistics/base/kurtosis.m, scripts/statistics/base/moment.m,
scripts/statistics/base/qqplot.m, scripts/statistics/base/var.m,
scripts/statistics/distributions/betarnd.m,
scripts/statistics/distributions/binoinv.m,
scripts/statistics/distributions/binopdf.m,
scripts/statistics/distributions/binornd.m,
scripts/statistics/distributions/cauchy_rnd.m,
scripts/statistics/distributions/chi2rnd.m,
scripts/statistics/distributions/discrete_pdf.m,
scripts/statistics/distributions/discrete_rnd.m,
scripts/statistics/distributions/empirical_rnd.m,
scripts/statistics/distributions/exprnd.m,
scripts/statistics/distributions/frnd.m,
scripts/statistics/distributions/gamrnd.m,
scripts/statistics/distributions/geornd.m,
scripts/statistics/distributions/hygernd.m,
scripts/statistics/distributions/kolmogorov_smirnov_cdf.m,
scripts/statistics/distributions/laplace_cdf.m,
scripts/statistics/distributions/laplace_pdf.m,
scripts/statistics/distributions/logistic_cdf.m,
scripts/statistics/distributions/logistic_pdf.m,
scripts/statistics/distributions/lognrnd.m,
scripts/statistics/distributions/nbincdf.m,
scripts/statistics/distributions/nbininv.m,
scripts/statistics/distributions/nbinpdf.m,
scripts/statistics/distributions/nbinrnd.m,
scripts/statistics/distributions/normrnd.m,
scripts/statistics/distributions/poissinv.m,
scripts/statistics/distributions/poissrnd.m,
scripts/statistics/distributions/tinv.m,
scripts/statistics/distributions/trnd.m,
scripts/statistics/distributions/unidcdf.m,
scripts/statistics/distributions/unidpdf.m,
scripts/statistics/distributions/unidrnd.m,
scripts/statistics/distributions/unifrnd.m,
scripts/statistics/distributions/wblrnd.m,
scripts/statistics/models/module.mk,
scripts/statistics/tests/kruskal_wallis_test.m,
scripts/strings/base2dec.m, scripts/strings/deblank.m,
scripts/strings/dec2base.m, scripts/strings/dec2bin.m,
scripts/strings/dec2hex.m, scripts/strings/mat2str.m,
scripts/strings/ostrsplit.m, scripts/strings/regexptranslate.m,
scripts/strings/str2num.m, scripts/strings/strcat.m,
scripts/strings/strjoin.m, scripts/strings/strsplit.m,
scripts/strings/strtok.m, scripts/strings/strtrim.m,
scripts/strings/strtrunc.m, scripts/strings/substr.m,
scripts/testfun/__run_test_suite__.m, scripts/testfun/speed.m,
scripts/testfun/test.m, scripts/time/asctime.m,
scripts/time/datenum.m, scripts/time/datevec.m,
scripts/time/weekday.m, src/Makefile.am, test/Makefile.am,
test/build-bc-overload-tests.sh, test/build-sparse-tests.sh,
test/jit.tst, test/line-continue.tst: Strip trailing whitespace.
author | John W. Eaton <jwe@octave.org> |
---|---|
date | Tue, 20 Jan 2015 08:26:57 -0500 |
parents | 175b392e91fe |
children | 0e1f5a750d00 |
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/* Copyright (C) 2005-2013 David Bateman This file is part of Octave. Octave is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Octave is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with Octave; see the file COPYING. If not, see <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #include "ov.h" #include "defun-dld.h" #include "error.h" #include "gripes.h" #include "quit.h" #include "variables.h" #include "ov-re-sparse.h" #include "ov-cx-sparse.h" #include "oct-map.h" #include "pager.h" #include "unwind-prot.h" #include "eigs-base.cc" // Global pointer for user defined function. static octave_function *eigs_fcn = 0; // Have we warned about imaginary values returned from user function? static bool warned_imaginary = false; // Is this a recursive call? static int call_depth = 0; ColumnVector eigs_func (const ColumnVector &x, int &eigs_error) { ColumnVector retval; octave_value_list args; args(0) = x; if (eigs_fcn) { octave_value_list tmp = eigs_fcn->do_multi_index_op (1, args); if (error_state) { eigs_error = 1; gripe_user_supplied_eval ("eigs"); return retval; } if (tmp.length () && tmp(0).is_defined ()) { if (! warned_imaginary && tmp(0).is_complex_type ()) { warning ("eigs: ignoring imaginary part returned from user-supplied function"); warned_imaginary = true; } retval = ColumnVector (tmp(0).vector_value ()); if (error_state) { eigs_error = 1; gripe_user_supplied_eval ("eigs"); } } else { eigs_error = 1; gripe_user_supplied_eval ("eigs"); } } return retval; } ComplexColumnVector eigs_complex_func (const ComplexColumnVector &x, int &eigs_error) { ComplexColumnVector retval; octave_value_list args; args(0) = x; if (eigs_fcn) { octave_value_list tmp = eigs_fcn->do_multi_index_op (1, args); if (error_state) { eigs_error = 1; gripe_user_supplied_eval ("eigs"); return retval; } if (tmp.length () && tmp(0).is_defined ()) { retval = ComplexColumnVector (tmp(0).complex_vector_value ()); if (error_state) { eigs_error = 1; gripe_user_supplied_eval ("eigs"); } } else { eigs_error = 1; gripe_user_supplied_eval ("eigs"); } } return retval; } DEFUN_DLD (__eigs__, args, nargout, "-*- texinfo -*-\n\ @deftypefn {Loadable Function} {@var{d} =} __eigs__ (@var{A})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{A}, @var{k})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{A}, @var{k}, @var{sigma})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{A}, @var{k}, @var{sigma}, @var{opts})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{A}, @var{B})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{A}, @var{B}, @var{k})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{A}, @var{B}, @var{k}, @var{sigma})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{A}, @var{B}, @var{k}, @var{sigma}, @var{opts})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{af}, @var{n})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{af}, @var{n}, @var{B})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{af}, @var{n}, @var{k})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{af}, @var{n}, @var{B}, @var{k})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{af}, @var{n}, @var{k}, @var{sigma})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{af}, @var{n}, @var{B}, @var{k}, @var{sigma})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{af}, @var{n}, @var{k}, @var{sigma}, @var{opts})\n\ @deftypefnx {Loadable Function} {@var{d} =} __eigs__ (@var{af}, @var{n}, @var{B}, @var{k}, @var{sigma}, @var{opts})\n\ @deftypefnx {Loadable Function} {[@var{V}, @var{d}] =} __eigs__ (@var{A}, @dots{})\n\ @deftypefnx {Loadable Function} {[@var{V}, @var{d}] =} __eigs__ (@var{af}, @var{n}, @dots{})\n\ @deftypefnx {Loadable Function} {[@var{V}, @var{d}, @var{flag}] =} __eigs__ (@var{A}, @dots{})\n\ @deftypefnx {Loadable Function} {[@var{V}, @var{d}, @var{flag}] =} __eigs__ (@var{af}, @var{n}, @dots{})\n\ Undocumented internal function.\n\ @end deftypefn") { octave_value_list retval; #ifdef HAVE_ARPACK int nargin = args.length (); std::string fcn_name; octave_idx_type n = 0; octave_idx_type k = 6; Complex sigma = 0.; double sigmar, sigmai; bool have_sigma = false; std::string typ = "LM"; Matrix amm, bmm, bmt; ComplexMatrix acm, bcm, bct; SparseMatrix asmm, bsmm, bsmt; SparseComplexMatrix ascm, bscm, bsct; int b_arg = 0; bool have_b = false; bool have_a_fun = false; bool a_is_complex = false; bool b_is_complex = false; bool symmetric = false; bool sym_tested = false; bool cholB = false; bool a_is_sparse = false; ColumnVector permB; int arg_offset = 0; double tol = std::numeric_limits<double>::epsilon (); int maxit = 300; int disp = 0; octave_idx_type p = -1; ColumnVector resid; ComplexColumnVector cresid; octave_idx_type info = 1; warned_imaginary = false; unwind_protect frame; frame.protect_var (call_depth); call_depth++; if (call_depth > 1) { error ("eigs: invalid recursive call"); if (fcn_name.length ()) clear_function (fcn_name); return retval; } if (nargin == 0) print_usage (); else if (args(0).is_function_handle () || args(0).is_inline_function () || args(0).is_string ()) { if (args(0).is_string ()) { std::string name = args(0).string_value (); std::string fname = "function y = "; fcn_name = unique_symbol_name ("__eigs_fcn_"); fname.append (fcn_name); fname.append ("(x) y = "); eigs_fcn = extract_function (args(0), "eigs", fcn_name, fname, "; endfunction"); } else eigs_fcn = args(0).function_value (); if (!eigs_fcn) { error ("eigs: unknown function"); return retval; } if (nargin < 2) { error ("eigs: incorrect number of arguments"); return retval; } else { n = args(1).nint_value (); arg_offset = 1; have_a_fun = true; } } else { if (args(0).is_complex_type ()) { if (args(0).is_sparse_type ()) { ascm = (args(0).sparse_complex_matrix_value ()); a_is_sparse = true; } else acm = (args(0).complex_matrix_value ()); a_is_complex = true; symmetric = false; // ARPACK doesn't special case complex symmetric sym_tested = true; } else { if (args(0).is_sparse_type ()) { asmm = (args(0).sparse_matrix_value ()); a_is_sparse = true; } else { amm = (args(0).matrix_value ()); } } } // Note hold off reading B till later to avoid issues of double // copies of the matrix if B is full/real while A is complex. if (!error_state && nargin > 1 + arg_offset && !(args(1 + arg_offset).is_real_scalar ())) { if (args(1+arg_offset).is_complex_type ()) { b_arg = 1+arg_offset; have_b = true; b_is_complex = true; arg_offset++; } else { b_arg = 1+arg_offset; have_b = true; arg_offset++; } } if (!error_state && nargin > (1+arg_offset)) k = args(1+arg_offset).nint_value (); if (!error_state && nargin > (2+arg_offset)) { if (args(2+arg_offset).is_string ()) { typ = args(2+arg_offset).string_value (); // Use STL function to convert to upper case transform (typ.begin (), typ.end (), typ.begin (), toupper); sigma = 0.; } else { sigma = args(2+arg_offset).complex_value (); if (! error_state) have_sigma = true; else { error ("eigs: SIGMA must be a scalar or a string"); return retval; } } } sigmar = std::real (sigma); sigmai = std::imag (sigma); if (!error_state && nargin > (3+arg_offset)) { if (args(3+arg_offset).is_map ()) { octave_scalar_map map = args(3+arg_offset).scalar_map_value (); if (! error_state) { octave_value tmp; // issym is ignored for complex matrix inputs tmp = map.getfield ("issym"); if (tmp.is_defined () && !sym_tested) { symmetric = tmp.double_value () != 0.; sym_tested = true; } // isreal is ignored if A is not a function tmp = map.getfield ("isreal"); if (tmp.is_defined () && have_a_fun) a_is_complex = ! (tmp.double_value () != 0.); tmp = map.getfield ("tol"); if (tmp.is_defined ()) tol = tmp.double_value (); tmp = map.getfield ("maxit"); if (tmp.is_defined ()) maxit = tmp.nint_value (); tmp = map.getfield ("p"); if (tmp.is_defined ()) p = tmp.nint_value (); tmp = map.getfield ("v0"); if (tmp.is_defined ()) { if (a_is_complex || b_is_complex) cresid = ComplexColumnVector (tmp.complex_vector_value ()); else resid = ColumnVector (tmp.vector_value ()); } tmp = map.getfield ("disp"); if (tmp.is_defined ()) disp = tmp.nint_value (); tmp = map.getfield ("cholB"); if (tmp.is_defined ()) cholB = tmp.double_value () != 0.; tmp = map.getfield ("permB"); if (tmp.is_defined ()) permB = ColumnVector (tmp.vector_value ()) - 1.0; } else { error ("eigs: OPTS argument must be a scalar structure"); return retval; } } else { error ("eigs: OPTS argument must be a structure"); return retval; } } if (nargin > (4+arg_offset)) { error ("eigs: incorrect number of arguments"); return retval; } // Test undeclared (no issym) matrix inputs for symmetry if (!sym_tested && !have_a_fun) { if (a_is_sparse) symmetric = asmm.is_symmetric (); else symmetric = amm.is_symmetric (); } if (have_b) { if (a_is_complex || b_is_complex) { if (a_is_sparse) bscm = args(b_arg).sparse_complex_matrix_value (); else bcm = args(b_arg).complex_matrix_value (); } else { if (a_is_sparse) bsmm = args(b_arg).sparse_matrix_value (); else bmm = args(b_arg).matrix_value (); } } // Mode 1 for SM mode seems unstable for some reason. // Use Mode 3 instead, with sigma = 0. if (!error_state && !have_sigma && typ == "SM") have_sigma = true; if (!error_state) { octave_idx_type nconv; if (a_is_complex || b_is_complex) { ComplexMatrix eig_vec; ComplexColumnVector eig_val; if (have_a_fun) nconv = EigsComplexNonSymmetricFunc (eigs_complex_func, n, typ, sigma, k, p, info, eig_vec, eig_val, cresid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); else if (have_sigma) { if (a_is_sparse) nconv = EigsComplexNonSymmetricMatrixShift (ascm, sigma, k, p, info, eig_vec, eig_val, bscm, permB, cresid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); else nconv = EigsComplexNonSymmetricMatrixShift (acm, sigma, k, p, info, eig_vec, eig_val, bcm, permB, cresid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); } else { if (a_is_sparse) nconv = EigsComplexNonSymmetricMatrix (ascm, typ, k, p, info, eig_vec, eig_val, bscm, permB, cresid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); else nconv = EigsComplexNonSymmetricMatrix (acm, typ, k, p, info, eig_vec, eig_val, bcm, permB, cresid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); } if (nargout < 2) retval(0) = eig_val; else { retval(2) = double (info); retval(1) = ComplexDiagMatrix (eig_val); retval(0) = eig_vec; } } else if (sigmai != 0.) { // Promote real problem to a complex one. ComplexMatrix eig_vec; ComplexColumnVector eig_val; if (have_a_fun) nconv = EigsComplexNonSymmetricFunc (eigs_complex_func, n, typ, sigma, k, p, info, eig_vec, eig_val, cresid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); else { if (a_is_sparse) nconv = EigsComplexNonSymmetricMatrixShift (SparseComplexMatrix (asmm), sigma, k, p, info, eig_vec, eig_val, SparseComplexMatrix (bsmm), permB, cresid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); else nconv = EigsComplexNonSymmetricMatrixShift (ComplexMatrix (amm), sigma, k, p, info, eig_vec, eig_val, ComplexMatrix (bmm), permB, cresid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); } if (nargout < 2) retval(0) = eig_val; else { retval(2) = double (info); retval(1) = ComplexDiagMatrix (eig_val); retval(0) = eig_vec; } } else { if (symmetric) { Matrix eig_vec; ColumnVector eig_val; if (have_a_fun) nconv = EigsRealSymmetricFunc (eigs_func, n, typ, sigmar, k, p, info, eig_vec, eig_val, resid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); else if (have_sigma) { if (a_is_sparse) nconv = EigsRealSymmetricMatrixShift (asmm, sigmar, k, p, info, eig_vec, eig_val, bsmm, permB, resid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); else nconv = EigsRealSymmetricMatrixShift (amm, sigmar, k, p, info, eig_vec, eig_val, bmm, permB, resid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); } else { if (a_is_sparse) nconv = EigsRealSymmetricMatrix (asmm, typ, k, p, info, eig_vec, eig_val, bsmm, permB, resid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); else nconv = EigsRealSymmetricMatrix (amm, typ, k, p, info, eig_vec, eig_val, bmm, permB, resid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); } if (nargout < 2) retval(0) = eig_val; else { retval(2) = double (info); retval(1) = DiagMatrix (eig_val); retval(0) = eig_vec; } } else { ComplexMatrix eig_vec; ComplexColumnVector eig_val; if (have_a_fun) nconv = EigsRealNonSymmetricFunc (eigs_func, n, typ, sigmar, k, p, info, eig_vec, eig_val, resid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); else if (have_sigma) { if (a_is_sparse) nconv = EigsRealNonSymmetricMatrixShift (asmm, sigmar, k, p, info, eig_vec, eig_val, bsmm, permB, resid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); else nconv = EigsRealNonSymmetricMatrixShift (amm, sigmar, k, p, info, eig_vec, eig_val, bmm, permB, resid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); } else { if (a_is_sparse) nconv = EigsRealNonSymmetricMatrix (asmm, typ, k, p, info, eig_vec, eig_val, bsmm, permB, resid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); else nconv = EigsRealNonSymmetricMatrix (amm, typ, k, p, info, eig_vec, eig_val, bmm, permB, resid, octave_stdout, tol, (nargout > 1), cholB, disp, maxit); } if (nargout < 2) retval(0) = eig_val; else { retval(2) = double (info); retval(1) = ComplexDiagMatrix (eig_val); retval(0) = eig_vec; } } } if (nconv <= 0) warning ("eigs: None of the %d requested eigenvalues converged", k); else if (nconv < k) warning ("eigs: Only %d of the %d requested eigenvalues converged", nconv, k); } if (! fcn_name.empty ()) clear_function (fcn_name); #else error ("eigs: not available in this version of Octave"); #endif return retval; }