UBC Mathematics Department
http://www.math.ubc.ca/
There is a lot on cryptography and especially Alan Turing: http://www.wadham.ox.ac.uk/~ahodges/Turing.html
Bletchley Park was once the home of British efforts at reading the Germans' mail. It is now a museum: http://www.cranfield.ac.uk/CCC/BPark/
Even the NSA has a site. Recently they released to public access nearly a half century of previously classified documents: http://www.nsa.gov:8080/programs/opendoor/pressrel.html One of the most interesting of these is Alan Turing's Enigma manual.
Space mathematics from NASA: http://tommy.jsc.nasa.gov/~woodfill/SPACEED/SEHHTML/math.html
http://www.astro.virginia.edu/~eww6n/math/
Related material about the geometry of the Solar system: http://www.jpl.nasa.gov/basics/bsf-toc.htm
http://stat.tamu.edu/~dcljr/euclid.html
There are several copies of the Elements out there. There is even one which is animated, but it is not so clear to us that Euclid benefits more from this than from the extremely useful additional remarks in Heath's edition. http://aleph0.clarku.edu/~djoyce/java/elements/elements.html
And one huge archive: http://www-groups.dcs.st-and.ac.uk/~history/
A miscellaneous collection, one of many things available from the Geometry Centre: http://www.geom.umn.edu/apps/gallery.html The Ashmolean Museum at Oxford University currently has two virtual art exhibits involving Mathematics. http://www.mhs.ox.ac.uk/exhibits/text.htm
A number of unlikely sources of mathematics:
An interesting and extensive tutorial on the geometry of vision: http://www.iitb.fhg.de/~cveducat/ECV_Tut_Proj_Geom/ProjGeometry.html
Mathematics in an unlikely but friendly environment: http://members.aol.com/mathquilt/index.html
http://alife.santafe.edu/alife/
http://math.wisc.edu/~griffeat/kitchen.html
http://math.wisc.edu/~griffeat/griffeat.html
http://alife.santafe.edu/alife/topics/simulators/dret/node1.html
A different kind of artificial life: http://www.krl.caltech.edu/~charles/home/work.html
This is one of the largest. It is not a profesional job, but it is nonetheless useful. http://www.astro.virginia.edu/~eww6n/math/
There are probably many large collections of stuff assembled by individuals, but the best one for the topics it covers is http://www.ics.uci.edu/~eppstein/"> http://www.ics.uci.edu/~eppstein/">http://www.ics.uci.edu/~eppstein/ A more particular idea of what's available there can be found at: http://www.ics.uci.edu/~eppstein/junkyard/all.html A good example of what he has is http://www.ics.uci.edu/~eppstein/junkyard/euler/
A comprehensive reference list: https://mathblog.com/reference/arithmetic/number-theory/
Once you could get in touch with real people on the Internet: http://kiwi.dep.anl.gov/askasci/1993/math.htm
Jack Dongarra manages a group of programmers producing stuff for all of us: http://www.netlib.org/utk/icl.html Recently the group has turned to Java: http://www.netlib.org/benchmark/linpackjava/
Another source of Java numerical libraries: http://www.vni.com/products/wpd/jnl/jnl_1_0.html
A short and pretty example: http://www.ccsf.caltech.edu/~roy/Caustic/index.html It would be nice to have a similar one for rainbows, or aberrations in optical systems.
Physics archives contain a lot of mathematics: http://preprints.cern.ch/
One of many simple discussions of conic sections: http://jwilson.coe.uga.edu/emt669/Student.Folders/Jones.June/conics/conics.html
Some beautiful pictures: http://www.math.okstate.edu/~wrightd/
Notes from a summer course on geometry by Bill Thurston and others: and
The geometry forum is huge, and addresses a wide range of topics. It is not, however, of uniformly good quality.
One of our colleagues has essentially a complete course in mathematical graphics available: http://www.math.ubc.ca/people/faculty/cass/courses/m308-6b.html
One of the more interesting enthusiasts about producing mathematical pictures is http://www.best.com/~xah/. Particularly related to geometry is http://www.best.com/~xah/MathGraphicsGallery_dir/mathGraphicsGallery.html
Perhaps his best pictures: http://www.best.com/~xah/SpecialPlaneCurves_dir/ConicSections_dir/conicSections.html An unlikely source for geometry:
http://uces.ameslab.gov/uces/archive/resources/conics/node5.html There are several sites about 4D:
http://www.sover.net/~manx/hyprcube.html
A controversial matter: http://www.math.lsa.umich.edu/~hales/kepler.html
Something a bit more frivolous in geometry: http://kalama.doe.hawaii.edu/hern95/rt015/geo/index.html
http://daisy.uwaterloo.ca/~alopez-o/math-faq/math-faq.html
http://www.ipk-gatersleben.de/~battjes/
One of the best individual pages: http://www.cs.auckland.ac.nz/CDMTCS/chaitin/
Another: http://www-cs-staff.stanford.edu/~knuth/
http://math.berkeley.edu/~brock/
http://www.cecm.sfu.ca/projects/ISC/
The level of whimsey is awesome. Pi is a winner: http://www.go2net.com/internet/useless/useless/pi.html
The other point of view: http://students.vassar.edu/~wilee/linear.html
One possible idea about what Mathematics Journals will look like in the future: http://www.maa.org/news/cvm.html
An independent critic: http://sunsite.unc.edu/javafaq/
Last modified: April 15, 1997