TI-85 Calculator

Disclaimer: I am not responsible for any programs messing up your calculator. THESE PROGRAMS ARE NOT GUARANTEED! It is a good idea to back up your memory before running any programs on your calculator, particularly any Zshell programs.

About the TI-85

The TI-85 graphing calculator is TI's most versatile hand-held calculator, due to its programming strength (both in TI-BASIC and assembly) and advanced features such as conversions and equation solver.

A few things you need if you don't already have them.

A TI-Graph Link cable which costs about $70 or make your own cable. So you can transfer programs from your computer to your calculator and vice versa.
Zshell(this file contains Zshell and some games) is program code written in assembler, then compiled to machine code, and stored as a string to run games and other things very fast. The fact that the 85 can run Zshell programs makes it quite popular. The only way to install Zshell on your calculator is to use link either from another calculator or with your computer.
Note: When you install Zshell, it will end up at F1 in your custom menu.
Graph-Link software to UUDecode and open TI-85 or TI-82 files. The text version of program or group files can be displayed or exported, and PIC files can be copied or printed.

Games

TI-BASIC programs

Space Station Defender 2.3 - aliens try to take over your space station and your mission is to destroy the invading ships.

ZSHELL programs

Perversi 1.0 - a game remarkably like Othello, was recently completed. It features three levels of computer skill, 16 possible game setups, two board views, an intelligent cursor that changes over a spot you can move on, piece animations that help you see how the board changes, and a save/restore.

Math and/or Science Programs

TI-BASIC programs

Simplifying Quadratics - a program for simplifying quadratic equations to either a decimal approximation or to a radical form (it doesn't simplify the latter all the way).

Prime Factorization - a program that gives you the prime factorization of a number. The prime factorization of 1584 (which is 2^4*3^2*11) would appear like this '{(2,4) (3,2) (11,1)}'

ZSHELL programs

Sorry, none yet.

Links

ticalc.org-your Internet headquarters for TI graphing calculators.
Nick's TI Calculator Site-has info on the TI-GRAPH LINK (also tells how to make your own cable)
The Official Texas Instruments Site
Beginners TI-85 Zshell Programming-a good site teaching zshell programing
Search Yahoo for TI-85

Program Archives

TI-85 program archive at Texas Instruments
Aaron Brick's TI-85 FTP archive
TI-85 archive at ticalc.org
TI-85 Calculator Land-has great games and links

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If you have any questions or comments email me at virtuose@geocities.com