Question about Texas Instruments TI-84 Plus Calculator

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I don't have the manual for the TI-84. I need to know how to use scientific notation on it.

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You can download the guidebook from the manufacturer's web site at

To set the display to scientific notation, press MODE, right-arrow to highlight "Sci" on the first line, press ENTER to set it, then 2nd [QUIT] to exit the mode editor.

Posted on Nov 15, 2010


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How do i divide scientific notations?

Exactly as you would any two numbers. If you are not comfortable with the notation enclose each number in scientific notation between parentheses. This way you can be sure that the priority of operations is respected.

Sep 17, 2011 | Texas Instruments TI-84 Plus Silver...

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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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1/1024--->9.765625e-4 How do I get rid

If the absolute value is less than 0.001 then the TI-84 automatically switches to scientific notation. This is just the way the calculator works.

Sorry if that wasn't the answer you wanted to see, but there it is.

Feb 17, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

I have a TI30XA calculator and want to know how to multiply numbers using scientific notation. I have learned how to enter a number (e.g., 1.5 x 10 -6), but when I try to multiply it by something (e.g.,...

Press 2nd [SCI] to switch the calculator to display all results in scientific notation. The results are the same whether you do it in scientific notation or not, it's just how the number is displayed.

Feb 13, 2011 | Texas Instruments TI-30XA Calculator

1 Answer

When i type in a question on my TI-84 calculator the answer usually always ends with "e" HELP

You're in Scientific or Engineering notation.

Press the MODE button to enter the mode editor. Highlight "NORMAL" on the first line and press ENTER. Highlight "FLOAT" on the second line and press ENTER. Press 2ND QUIT to exit the mode editor.

Mar 24, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

I know how to enter my numbers in scientific notation, but how do I set up my calculator so that my answers are in scientific notation also?

It is quite simple. Press [MODE]. Right Arrow to select [SCI][ENTER]. You can then press [2nd][QUIT] to go to the HOME screen (normal screen).
However the number of digits displayed in the decimal part may still be set by the FLOAT option. You might want to select the number of significant digits by limiting the number of decimal digits in the FLOAT option
Hope it helps.

Oct 13, 2009 | Texas Instruments TI-84 Plus Calculator

1 Answer

My TI-84 Plus gives answer as 2.145274703E14, what is E?

E is the calculators form of scientific notation. so 2.145274703E14
is really 2.145274703 x 10^14 or 214527470300000

Apr 08, 2009 | Texas Instruments TI-84 Plus Calculator

1 Answer

All answers are in scientific notation

I am just going to be frank here, you have to do the math. Move the decimal over a couple spaces and you will be fine. You can post back if you need to know how to convert it. Th ti-84 can't do everything. You need the ti 89 to do more advance things, which I don't think you need.

Nov 12, 2008 | Texas Instruments TI-84 Plus Calculator

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