Question about Texas Instruments TI-84 Plus Calculator

# When I type a problem into the TI84 it will give me the answer with an Error. Example, I type in 2+2 and get 4E0. This happens with everything I enter into the calculator. How to I fix this?

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Sorry, but it takes sometime to be well familiar with the calculator. The E in the result is a short-hand notation for times 10 to a power. What you got is 4x10^(0) which is just 4.
Your calculator is doing that because it is configured to display result in SCIENTIFIC format.
To revert to the format you may be more accustomed to,

1. Press the [MODE] key
2. The first line of the displayed screen will show NORMAL SCI ENG and the cursor blinking on SCI or ENG.
3. Use the left arrow to highlight NORMAL and press ENTER.
4. Press [2nd][MODE] to (QUIT) and go to main calculator screen.

Posted on Aug 25, 2010

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Posted on Jan 02, 2017

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