TI-83 Resource Website The Basics |
Entering Expressions with Exponents |
An exponent is entered using the karat ^ key. It is important that you know when given a problem which number is the base and which is the exponent.
Example: Enter 3^{4} into the calculator. The base is 3 and the exponent is 4.
Step 1: Enter the base. In this example, it would be 3.
Step 2: Press the karat ^ button. In this example, the blue + button above the ENTER key.
Step 3: Enter the exponent. In this example, it would be 4.
Step 4: Press ENTER. The answer will appear on the right side of the screen. In this example, the answer is 81.
We often have to enter more complicated expressions involving exponents using parentheses and the negative sign. For example: 5 to the negative 2nd power
5^{-2}
Here are the steps:
Step 1: Enter the base, 5.
Step 2: Enter the karat ^.
Step 3: Enter the left parenthesis above the 8 key.
Step 4: Enter the negative sign using the (-) key, not the subtraction key!
Step 4: Enter the 2
Step 5: Enter the right parenthesis above the 9 key.
Step 6: Press ENTER
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This site was last updated 08/16/02 and is maintained by Donna L. Sperry