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How to Store & Recall Formulas
Follow the steps below to store formulas or any textual information on your TI 83/84.
We will use programming features of the TI, and the manual does come in handy. If you do not have a manual, you can always download a PDF version directly from Texas Instrument. Here is a list of links to manuals for their major models.
Follow the steps below to store formulas or any textual information on your TI 83/84.
We will use programming features of the TI, and the manual does come in handy. If you do not have a manual, you can always download a PDF version directly from Texas Instrument. Here is a list of links to manuals for their major models.
| What to Enter | Screen Shots |
| Press PRGM. Then, you will see this window: |  |
| Scroll right to NEW. 1: Create New is selected. Press ENTER. |
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| A-LOCK (ALPHA LOCK) is on. You will enter the name of a program with alpha-numeric keys. The first character must be a letter, NOT a numeral. |
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| Type in the name of the program. |  |
| Press ENTER. Then, you will see a window like this: |  |
| Press ALPHA, or choose A-LOCK by pressing 2ND then ALPHA. For our purpose, every formula must start and end with quotation marks, which is above the + Key. A space is entered by the alpha key above zero, i.e., ⌊⌋. Remember to end the formula with a quotation mark. |
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| In order to enter a variable X, or standard operational symbols such as *, /, (, ), or names of functions such as sin, cos, ln, etc., you need to disengage alpha keys. | Press ALPHA once to engage. Press it again to disengage. |
| Press 2ND and QUIT (above MODE). You will return to a blank Home Screen: |
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| To recall a formula, press PRGM. |  |
| Scroll to the program you want, and press ENTER. Then, you will see a screen like this: |
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| press ENTER again. You will see the formula on the display. Scroll as needed. |
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| In the above tutorial, you entered formuals merely as textual information. That is why you used quotation marks. If you were truly programming your TI so that real computations could be done with the formulas, we would not be using quotation marks, and instead, we would be adding more commands. |
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| KU Interactive Mathematics |
Disclaimer • Updated September 4, 2008
Email: mitsuma@kutztown.edu
Phone: +1 (610) 462-WPJW
Phone: +1 (610) 462-WPJW