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This web site features an extensive section concerning cryptography: Originally, I had among the pages on other topics, a single page about a map projection of my own. Now, having once again written, this time to run on a PC, a program to draw maps in a variety of projections, this site, the one with materials on topics other than cryptography, now contains: an extensive series of pages describing several map projections and how to construct them. Note that there are some other topics addressed within the section on cryptography as well. Error-Correcting Codes have a page, and the section on teletypewriter ciphers illustrates many codes used with teletypewriters; more on this topic is at a page within the section on data compression. Particularly intriguing may be the proposal for representing a large repertoire of characters within 5-level code. |
