Question about Texas Instruments TI-84 Plus Calculator

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My Ti-84 plus gives me an answer of "4E-4" when I multiply .02 times itself. How can I get it to show me the decimal answer instead of the E

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Unfortunately, you can't. From the manual:

If [...] the answer cannot display in 10 digits (or the absolute value is less than 0.001), the TI-84Plus expresses the answer in scientifc notation.

Posted on Oct 05, 2010

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My TI-84 Plus Silver Edition is giving regular math problems (.064/160000) an answer involving an E (4E-7) and I'm not sure how to change it.


The E is an engineering notation for 'x10^' so the answer there 4E-7 = 4 x 10^ -7 (I'm using the x as multiplication). I'm afraid there isn't a way of changing it (that I know of) but it is not difficult to learn, it's just a simple way of writing scientific notation!

Sep 01, 2011 | Texas Instruments TI-84 Plus Calculator

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This seems like a silly question considering all that a TI-84 can do, however is there a percent "key"?


No, there isn't. You can always convert a decimal value to a percentage by multiplying by 100.

Likewise, there is no permil key or ppm (parts per million) key.

Aug 05, 2011 | Texas Instruments TI-84 Plus Calculator

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I have a TI-83 plus calculator. I put into the calculator 96-5.970 ^2 multiplied by 0.2723 and it gave me the answer 2.4507 ^E- 4 Is there anyway to get the answer to the decimal value instead of it...


2.4507E-4 is scientific notation for 2.4507 times ten to the minus 4, or .00024507.

Take the 2.4507 and move the decimal point, to the left if the exponent is negative, to the right if it is positive, the specified number of positions.

If the magnitude of the result is too small or too large, the calculator will automatically switch to scientific notation. Imagine a number that has more than 12 digits to the left of the decimal point. How is that going to fit onto the display? Or a number that is 0 followed by the decimal point followed by 12 0s and then some significant digits?

Jun 21, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

What is the shortcut to find % on TI-84


Sorry to disappoint you but the % key or command does not exist on the TI83/84 family of calculators. Just divide or multiply by 100 depending on which way you are going: From % to decimal or decimal to %.
Simpler still move: decimal mark two places to left (% to decimal) or to right (decimal to %).

Sep 17, 2010 | Texas Instruments TI-84 Plus Silver...

1 Answer

All of my answers show up rounded to the nearest whole number instead of in decimal form


  1. Press [MODE].
  2. Highlight Normal, it is not highlighted already, and press [ENTER].
  3. Use DownArrow to move cursor to the second line.
  4. If you want to keep all possible decimals digits highlight float and press [ENTER], then press [2nd][MODE] (QUIT) to exit configuration screen.
  5. f you want a limited number of decimal digits (2,3, 4 or 5), highlight the corresponding number on 2nd line an press [ENTER], then [2nd][QUIT] to exit configuration screen.

Mar 02, 2010 | Texas Instruments TI-84 Plus Silver...

2 Answers

I need to convert decimals to fractions


Hello,
Press [MATH][1:ToFrac] to convert an aswer to fraction.
If you enter 18.52[ToFrac] [ENTER gives 463/25

[MATH][2:ToDEC] converts a fraction to a decimal number.
Hope it helps.

Sep 22, 2009 | Texas Instruments TI-84 Plus Silver...

3 Answers

How do I on a TI-84 Plus Simplify Fractions


Enter the fraction for example: enter 8/12.
The answer will be .666666
Then click Math (which is located under the Alpha button).
Click the ->Frac button (the first one).
It should come up as Ans->Frac.
Click Enter.
It should now read 2/3 which is 8/12 reduced.
Note: I have a TI-84 Plus Silver Edition, and the TI-84 Plus might not have this function, but that is how I do it on my TI-84 Plus Silver Edition

Nov 08, 2008 | Office Equipment & Supplies

1 Answer

When I type in (0.02) to the power of 2, it displays E. I want decimals


Hello,
If number format in MODE is set to Normal, and if the (absolute value of) the number is smaller than 0.001,the calculator displays it in scientific notation( with the E). By the way E( ) stands for x10^( ).

Sep 25, 2008 | Texas Instruments TI-84 Plus Calculator

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