- Pronunciation guide for mathematical notation. 2 pages.
- English-to-math phrase book w/ a few exercises. 13 pages.
- Specimen of simple proofs. 7 pages. Templates of proofs that will be covered on Monday Sep. 21st.
- How not to do a proof, advice by Margaret M. Fleck.

ttable is a little program that prints truth tables. It runs from the command line under Unix and has not been tested elsewhere.

- Three solved combinatorics exercises. Six pages.

- Basic graph definitions. 4 pages.

TkGate is a event driven digital circuit simulator with a tcl/tk-based graphical editor. [snip] The distribution comes with a number of tutorial and example circuits which can be loaded through the "Help" menu. The example circuits include a simple CPU, programmed to run the Animals game. [snip] TkGate is free software provided with source code under the Gnu Public License.

There exists at least a Debian binary package for TkGate.- Mathworld, by Wolfram Research.
- Wikipedia. Not just math, but a good coverage of math.
- PlanetMath.org "Math for the people, by the people."
- Thesaurus.math.org "brief explanations of mathematical terms and ideas."
- Concise Encyclopedia of Mathematics, Eric W. Weisstein.