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TI-83 Programs

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Although aging, the venerable Texas Instruments TI-83 remains one of the more popular graphing calculators currently on the market. We decided this would be a good place to offer a small series of TI-83 programs that calculus students may find useful. All are offered free of charge, but without support. The only restriction on their use is that no false claims be made as to authorship.*

The programs included in the group are:

All of these programs are in a format specific to Texas Instruments Graph-Link™ software, bearing a '.83p' extension. You will need the appropriate software and calculator cable to install these on your calculator after downloading them from our site. These are available from TI and many retailers - click on the TI logo above for more information.


  1. These programs will only work on a TI-83, TI-83 Plus, or TI-83 Plus SE.
  2. Each program uses some of the 10 functions provided by the TI-83 for graphing/calculations. (These are designated Y1-Y0, and are accessed by pressing the 'Y=' key on the calculator keypad.) The number used varies by program. All start by using Y0, then progressing backwards through the functions (Y9, Y8, ...). Any user functions stored in these locations will be overwritten every time the program is run - Beware!
  3. Again, you need the Graph-Link package from TI to install the programs on your calculator.

*Bright Ideas Software makes no warranty, either expressed or implied, including but not limited to any implied warranties of merchantability and fitness for a particular purpose, regarding these programs and makes them available solely on an "as-is" basis. In no event shall Bright Ideas Software be liable to anyone for special, collateral, incidental, or consequential damages in connection with or arising out of the use of these programs. and the sole and exclusive liability of Bright Ideas Software, regardless of the form of action, shall not exceed the purchase price of the programs. Moreover, Bright Ideas Software shall not be liable for any claim of any kind whatsoever against the use of these programs by any other party.

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