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Macaulay2 / M2

The primary source code repository for Macaulay2, a system for computing in commutative algebra, algebraic geometry and related fields.
https://macaulay2.com
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Broken links for diagrams in MonomialAlgebras package #402

Closed d-torrance closed 4 years ago

d-torrance commented 8 years ago

The "Diagrams" documentation in the MonomialAlgebras package includes a number of images which no longer appear to exist, e.g., [1].

Ideally, these images should probably be distributed with Macaulay2 itself. In addition to fixing 404 issues like this, it would also fix a privacy-breach-generic Lintian warning [2] in the Debian package.

[1] http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projr_33.jpg. [2] https://lintian.debian.org/tags/privacy-breach-generic.html

DanGrayson commented 8 years ago

There are other links that don't work, too!

@eisenbud, @boehm: can you locate these files and add them to the package and correct the links?:

http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGbar_24.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGbar_25.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGbar_33.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGbar_34.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGbar_43.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGbar_53.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGplane_24.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGplane_25.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGplane_33.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGplane_34.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGplane_43.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGplane_53.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projc_24.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projc_25.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projc_33.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projc_34.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projc_43.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projc_53.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projd_24.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projd_25.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projd_33.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projd_34.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projd_43.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projd_53.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projr_24.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projr_25.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projr_33.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projr_34.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projr_43.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projr_53.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/proveEG_24.m2
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/proveEG_25.zip
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/proveEG_33.m2
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/proveEG_34.zip
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/proveEG_43.m2
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/proveEG_53.zip
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebrasExtras/html

Actually, the last one is probably a directory, and the link should be removed.

DanGrayson commented 8 years ago

There are a total of external 310 links (at least) in the documentation. Checking them might be good, but not if it causes the build to fail when one of them goes missing. The place to check the would be in the C program in Macaulay2/html-check-links.

ftp://ftp.gnu.org/gnu/gmp/
ftp://www.mathematik.uni-kl.de/pub/Math/Singular/Factory
http://arxiv.org/abs/
http://arxiv.org/abs/0704.0049
http://arxiv.org/abs/0903.1335
http://arxiv.org/abs/0912.2151
http://arxiv.org/abs/0912.2152
http://arxiv.org/abs/1103.2314
http://arxiv.org/abs/1105.3991
http://arxiv.org/abs/1110.3653
http://arxiv.org/abs/1201.1579
http://arxiv.org/abs/1205.4190
http://arxiv.org/abs/1206.1735
http://arxiv.org/abs/1206.1916v1
http://arxiv.org/abs/1210.6410
http://arxiv.org/abs/1402.4052
http://arxiv.org/abs/1403.0793
http://arxiv.org/abs/1410.4811
http://arxiv.org/abs/1411.7940
http://arxiv.org/abs/math.AC/0305214
http://arxiv.org/abs/math.AG/0001159
http://arxiv.org/abs/math/0111195
http://arxiv.org/abs/math/0702189
http://arxiv.org/abs/math/9801107
http://arxiv.org/abs/math/9911022
http://cgm.cs.mcgill.ca/~avis/C/lrs.html
http://cs.anu.edu.au/~bdm/nauty
http://cs.anu.edu.au/~bdm/nauty/
http://dangrayson.com/
http://darwin.bth.rwth-aachen.de/opus/volltexte/2009/2950/
http://dx.doi.org/10.1016/j.jalgebra.2010.01.031
http://dx.doi.org/10.1016/j.jcta.2011.08.001
http://dx.doi.org/10.1016/j.jsc.2015.05.004
http://dx.doi.org/10.1016/j.jsc.2015.11.004
http://dx.doi.org/10.1090/S0273-0979-1982-15021-2
http://dx.doi.org/10.1307/mmj/1123090775
http://dx.doi.org/10.2140/gt.2014.18.911
http://dx.doi.org/10.3842/SIGMA.2009.078
http://en.wikipedia.org/wiki/Arithmetic-geometric_mean
http://en.wikipedia.org/wiki/Bessel_function
http://en.wikipedia.org/wiki/Error_function
http://en.wikipedia.org/wiki/Euler-Mascheroni_constant
http://en.wikipedia.org/wiki/Exponential_integral
http://en.wikipedia.org/wiki/Gamma_function
http://en.wikipedia.org/wiki/Hyperbolic_function
http://en.wikipedia.org/wiki/NaN
http://en.wikipedia.org/wiki/Riemann_zeta_function
http://en.wikipedia.org/wiki/Trigonometric_function
http://en.wikipedia.org/wiki/XML
http://faculty.fordham.edu/dswinarski
http://faculty.uscupstate.edu/bbarwick/
http://faculty1.coloradocollege.edu/~ataylor/
http://flash.lakeheadu.ca/~avantuyl/
http://flintlib.org/
http://front.math.ucdavis.edu/0710.5322
http://github.com/Macaulay2/M2/blob/master/M2/Macaulay2/packages/CodepthThree.m2
http://github.com/Macaulay2/M2/blob/master/M2/Macaulay2/packages/GraphicalModels.m2
http://github.com/Macaulay2/M2/blob/master/M2/Macaulay2/packages/HighestWeights.m2
http://github.com/Macaulay2/M2/blob/master/M2/Macaulay2/packages/InvariantRing.m2
http://github.com/Macaulay2/M2/blob/master/M2/Macaulay2/packages/MonomialAlgebras.m2
http://github.com/Macaulay2/M2/blob/master/M2/Macaulay2/packages/PHCpack.m2
http://gmplib.org/
http://grdb.lboro.ac.uk/
http://groups.google.com/group/macaulay2
http://home.uchicago.edu/~joisro
http://homepages.cwi.nl/~lex/
http://j-sag.org/
http://j-sag.org/Volume1/
http://j-sag.org/Volume1/EdgeIdeals.m2
http://j-sag.org/Volume1/PieriMaps.m2
http://j-sag.org/Volume1/Polyhedra.m2
http://j-sag.org/Volume1/jsag-1-2009.pdf
http://j-sag.org/Volume1/jsag-2-2009.pdf
http://j-sag.org/Volume1/jsag-3-2009.pdf
http://j-sag.org/Volume2/
http://j-sag.org/Volume2/HodgeIntegrals.m2
http://j-sag.org/Volume2/ModuleDeformations.m2
http://j-sag.org/Volume2/ToricVectorBundles.m2
http://j-sag.org/Volume2/jsag-1-2010.pdf
http://j-sag.org/Volume2/jsag-2-2010.pdf
http://j-sag.org/Volume2/jsag-3-2010.pdf
http://j-sag.org/Volume3/
http://j-sag.org/Volume3/Nauty.m2
http://j-sag.org/Volume3/NumericalAlgebraicGeometry.tar
http://j-sag.org/Volume3/jsag-1-2011.pdf
http://j-sag.org/Volume3/jsag-2-2011.pdf
http://j-sag.org/Volume4/
http://j-sag.org/Volume4/Binomials.m2
http://j-sag.org/Volume4/KustinMiller.m2
http://j-sag.org/Volume4/VersalDeformations.m2
http://j-sag.org/Volume4/jsag-1-2012.pdf
http://j-sag.org/Volume4/jsag-2-2012.pdf
http://j-sag.org/Volume4/jsag-3-2012.pdf
http://j-sag.org/Volume5/
http://j-sag.org/Volume5/GraphicalModels.m2
http://j-sag.org/Volume5/InvariantRing.m2
http://j-sag.org/Volume5/MonomialAlgebras.m2
http://j-sag.org/Volume5/jsag-1-2013.pdf
http://j-sag.org/Volume5/jsag-2-2013.pdf
http://j-sag.org/Volume5/jsag-3-2013.pdf
http://link.springer.com/book/10.1007%2F978-0-8176-4771-1
http://link.springer.com/book/10.1007%2Fb138611
http://magma.maths.usyd.edu.au/users/kasprzyk/index.html
http://magma.maths.usyd.edu.au/~danr
http://mate.dm.uba.ar/~nbotbol/
http://mate.dm.uba.ar/~nbotbol/pdfs/ResultantsM2.pdf
http://math.adelphi.edu/~bstone/
http://math.bard.edu/~bstone/
http://math.berkeley.edu/~bernd/
http://math.berkeley.edu/~bernd/index.html
http://math.berkeley.edu/~charleyc/
http://math.berkeley.edu/~claudiu/
http://math.berkeley.edu/~nilten/
http://math.berkeley.edu/~shaowei/
http://math.boisestate.edu/~zteitler/
http://math.galetto.org
http://math.mit.edu/~ssam/
http://math.sjsu.edu/~egross
http://math.stanford.edu/~derman/
http://math.stanford.edu/~sampayne/
http://math.stanford.edu/~vakil/programs/index.html
http://mpfr.org/
http://mplapack.sourceforge.net/
http://msp.org/ant/2013/7-10/p02.xhtml
http://msp.org/jsag/2014/6-1/
http://msp.org/jsag/2014/6-1/jsag-v6-n1-p01-s.pdf
http://msp.org/jsag/2014/6-1/jsag-v6-n1-x01-code.zip
http://msp.org/jsag/2015/7-1/
http://msp.org/jsag/2015/7-1/jsag-v7-n1-x03-HW.zip
http://msp.org/jsag/2015/7-1/p03.xhtml
http://mypages.iit.edu/~spetrov1/
http://oeis.org/
http://page.mi.fu-berlin.de/rbirkner/
http://page.mi.fu-berlin.de/rbirkner/index.htm
http://page.mi.fu-berlin.de/rbirkner/indexen.htm
http://pari.math.u-bordeaux.fr/
http://people.cs.uchicago.edu/~nilten/
http://people.hamilton.edu/cgibbons/
http://people.math.gatech.edu/~aleykin3
http://people.math.gatech.edu/~davidmur/Home.html
http://people.math.gatech.edu/~jyu67/Josephine_Yu/Main.html
http://perswww.kuleuven.be/ferran_dachs_cadefau
http://portal.acm.org/citation.cfm?doid=1114268.1114274
http://projecteuclid.org/euclid.pja/1135791770
http://shoup.net/ntl/
http://sites.psu.edu/zhaoningyang
http://stromme.uib.no/
http://stromme.uib.no/home/
http://stromme.uib.no/home/schubert/
http://thomas-kahle.de
http://tiswww.case.edu/php/chet/readline/history.html#SEC1
http://tiswww.case.edu/php/chet/readline/rluserman.html
http://users.wfu.edu/moorewf/
http://ux1.eiu.edu/~dwcook/
http://www-cgrl.cs.mcgill.ca/~avis/C/lrs.html
http://www-sop.inria.fr/members/Laurent.Buse/
http://www-staff.lboro.ac.uk/~magdb/
http://www.4ti2.de/
http://www.ams.org/mathscinet-getitem?mr=120167
http://www.brianpike.info/
http://www.broune.com/frobby/
http://www.cimat.mx/~abraham.mc
http://www.crcg.de/wiki/User:Bothmer
http://www.cs.amherst.edu/~dac/toric.html
http://www.dms.auburn.edu/~leonada
http://www.eecis.udel.edu/~dumas/Homology/
http://www.encap.org/epkg/
http://www.enpicom.com
http://www.gnu.org/software/emacs/
http://www.hemmecke.de/raymond/
http://www.hood.edu/Academics/Departments/Mathematics/Faculty/Gwyneth-Whieldon.html
http://www.hpl.hp.com/personal/Hans_Boehm/gc/
http://www.ifor.math.ethz.ch/~fukuda/cdd_home/
http://www.ifor.math.ethz.ch/~fukuda/cdd_home/cdd.html
http://www.j-sag.org/Volume2/Normaliz.m2
http://www.j-sag.org/Volume2/SimplicialDecomposability.m2
http://www.j-sag.org/Volume2/jsag-4-2010.pdf
http://www.j-sag.org/Volume2/jsag-5-2010.pdf
http://www.j-sag.org/Volume5/PHCpack.m2
http://www.j-sag.org/Volume5/QuillenSuslin.m2
http://www.j-sag.org/Volume5/jsag-4-2013.pdf
http://www.j-sag.org/Volume5/jsag-5-2013.pdf
http://www.j-sag.org/volume2.html
http://www.mast.queensu.ca/~ggsmith
http://www.mast.queensu.ca/~ggsmith/
http://www.math.colostate.edu/~bates
http://www.math.cornell.edu/People/Faculty/stillman.html
http://www.math.cornell.edu/People/Grads/fisher.html
http://www.math.cornell.edu/~frankmoore
http://www.math.cornell.edu/~mike
http://www.math.cornell.edu/~mike/
http://www.math.cornell.edu/~takhmejanov
http://www.math.duke.edu/~psa/
http://www.math.fsu.edu/~hoeij/papers/comments/jsc1994.html
http://www.math.gatech.edu/~leykin
http://www.math.ist.utl.pt/~papadak/
http://www.math.kth.se/~alundman
http://www.math.kth.se/~gss
http://www.math.lsa.umich.edu/~jrs/maple.html#posets
http://www.math.mit.edu/~jyu/
http://www.math.neu.edu/people/profile/oana-veliche/
http://www.math.ohio-state.edu/~snapp/
http://www.math.okstate.edu/~chris
http://www.math.okstate.edu/~chris/
http://www.math.purdue.edu/~nkummini/
http://www.math.sunysb.edu/~sorin/
http://www.math.ttu.edu/~lchriste/index.html
http://www.math.tu-berlin.de/polymake/
http://www.math.tu-berlin.de/~jensen/software/gfan/gfan0.4plus.tar.gz
http://www.math.tu-berlin.de/~ziegler/
http://www.math.uic.edu/~jan
http://www.math.uic.edu/~jan/
http://www.math.uic.edu/~jan/download.html
http://www.math.uic.edu/~lizgross
http://www.math.uiuc.edu/Macaulay2/
http://www.math.uiuc.edu/Macaulay2/Book/
http://www.math.uiuc.edu/Macaulay2/Packages/
http://www.math.uiuc.edu/~asecele2/
http://www.math.uiuc.edu/~dan/
http://www.math.uiuc.edu/~dan/cv.html#agm
http://www.math.uiuc.edu/~doe/
http://www.math.uiuc.edu/~grayson/
http://www.math.uiuc.edu/~katz/
http://www.math.umn.edu/~ezra/
http://www.math.uni-bielefeld.de/~bcalmes/
http://www.math.uni-sb.de/ag/decker/
http://www.math.uni-sb.de/ag/schreyer/
http://www.math.uni-sb.de/ag/schreyer/jb/
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGbar_24.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGbar_25.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGbar_33.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGbar_34.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGbar_43.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGbar_53.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGplane_24.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGplane_25.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGplane_33.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGplane_34.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGplane_43.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/EGplane_53.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projc_24.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projc_25.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projc_33.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projc_34.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projc_43.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projc_53.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projd_24.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projd_25.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projd_33.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projd_34.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projd_43.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projd_53.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projr_24.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projr_25.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projr_33.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projr_34.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projr_43.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/projr_53.jpg
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/proveEG_24.m2
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/proveEG_25.zip
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/proveEG_33.m2
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/proveEG_34.zip
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/proveEG_43.m2
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebras/proveEG_53.zip
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/MonomialAlgebrasExtras/html
http://www.math.uni-sb.de/ag/schreyer/jb/Macaulay2/SimplicialComplexes/SimplicialComplexes.m2
http://www.math.uni-sb.de/ag/schreyer/jb/diplom%20janko%20boehm.pdf
http://www.math.unl.edu/~s-wmoore3
http://www.math.uos.de/normaliz/
http://www.math.uos.de/normaliz/Normaliz2.12.2/Normaliz.pdf
http://www.math.utah.edu/~schwede
http://www.math.uwo.ca/~gdenham/
http://www.math.uwo.ca/~mfranz/convex
http://www.math.uwo.ca/~mfranz/convex/files/current/convex.m
http://www.math.vt.edu/people/fhinkel/
http://www.math.wisc.edu/~derman/
http://www.mathematik.uni-kl.de/ftp/pub/Math/Singular/SOURCES
http://www.mathematik.uni-kl.de/~boehm/
http://www.mathematik.uni-osnabrueck.de/normaliz/
http://www.mathematik.uni-tuebingen.de/~batyrev/batyrev.html.en
http://www.mathstat.dal.ca/~handrew/
http://www.mpfr.org/
http://www.mpir.org/
http://www.msri.org/~de
http://www.msri.org/~de/
http://www.nag.co.uk/projects/frisco/frisco/reports/d33421.ps
http://www.nd.edu/~dcook8
http://www.nd.edu/~smapes1/
http://www.nd.edu/~sommese/bertini/
http://www.netlib.org/blas/
http://www.netlib.org/lapack/
http://www.personal.psu.edu/sxp61
http://www.qhull.org/
http://www.shsu.edu/~ldg005
http://www.singular.uni-kl.de/
http://www.stephanieyang.com
http://www.texmacs.org/
http://www.texmacs.org/tmweb/manual/webman-interface.en.html
http://www.thomas-kahle.de
http://www.uni-magdeburg.de/windisch/
http://www.warwick.ac.uk/staff/D.Maclagan/
http://www.webpages.uidaho.edu/~abo/
http://www.wolfram.com/products/mathematica/
http://www.xmlsoft.org/
http://www2.math.su.se/~cberkesc/
http://www3.amherst.edu/~dacox/
http://www3.nd.edu/~craicu
http://www4.ncsu.edu/~smsulli2/
http://wwwb.math.rwth-aachen.de/~daniel/
https://math.berkeley.edu/~mhelmer/