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EigTool is open MATLAB software for analyzing eigenvalues, pseudospectra, and related spectral properties of matrices.
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num_comp Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
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Contents.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
KNOWN_ISSUES.txt Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
README.md Create README.md Sep 6, 2014
airy_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
basor_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
boeing_demo.m
chebspec_demo.m
companion_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
convdiff_demo.m
convdiff_fd_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
davies_demo.m
delete_et_marker.m
demmel_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
dwave_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
eigtool.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
eigtool_docs.html setting up Sep 6, 2014
eigtool_switch_fn.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
et_call_num_comp.m
et_download_mex.m
et_get_file_location.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
et_plot3d_switch_fn.m
frank_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
gallery3_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
gallery5_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
gaussseidel_demo.m
godunov_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
grcar_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
hatano_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
kahan_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
landau_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
markov_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
olmstead_demo.m
orrsommerfeld_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
pde_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
psademo.m setting up Sep 6, 2014
random_demo.m
randomtri_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
rdbrusselator_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
resize_et_colourbar.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
riffle_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
set_eigtool_prefs.m
skewlap3d_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
sparserandom_demo.m
supg_demo.m
tolosa_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
trans_lb_et_help.m setting up Sep 6, 2014
transient_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014
twisted_demo.m Fixed major ARPACK/eigs issues (arpackc.m now returns two arguments) Nov 20, 2014

README.md

EigTool is a MATLAB program for computing the pseudospectra and related quantities of dense and sparse matrices. A graphical user interface allows for the easy computation of eigenvalues, eigenvectors, pseudsopectra, the field of values, and related scalar quantities (e.g., pseudospectral abscissa and radius). The code may also be executed in command-line mode for easy generation of figures for papers and presentations.

EigTool was developed by Thomas G. Wright at Oxford University in 2002 (with codes for the pseudospectral abscissa and radius developed by Emre Mengi, Michael Overton, and colleagues).

Since 2002 the code has been occasionally updated to maintain functionality with new MATLAB releases.

We welcome additions from the community, ranging from improvements to the interface, to new features, to improved algorithms.

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