Question about Texas Instruments TI-84 Plus Calculator

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That is the right result: 2x2 is 4 times 10 to the 0th power. But if you don't want your answer in scientific notation, press MODE, highlight NORMAL on the first line, press ENTER, then press 2ND [QUIT]. (You can also select the number of digits on the second line, or FLOAT and let the calculator choose.)

Posted on Oct 08, 2010

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Posted on Jan 02, 2017

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Press MODE, highlight "NORMAL" on the first line and press ENTER. Optional: highlight the desired item on the second line and press ENTER. Press 2ND QUIT to exit the mode screen.

Aug 28, 2014 | Office Equipment & Supplies

With the TI-84 type in the following: [1] [2] [6] [divide] [9] [=]

This will give you 14.

This will give you 14.

Mar 03, 2011 | Texas Instruments TI-84 Plus Calculator

Nothing is wrong w/ the calculator, e is the base for natural logarithms, therefore, you are getting the correct solution for the problem you typed. to get four, simply type 2 then the "squared" button (the button w/ a small 2 on it) and voila!

Sep 27, 2010 | Texas Instruments TI-84 Plus Calculator

Your calculator is working properly, it's simply displaying answers in scientific notation. To change this, press MODE, then use the arrow keys to highlight NORMAL on the top row, then press ENTER to select it. On the second line, highlight FLOAT and press ENTER. Press 2ND [QUIT] to save the settings and exit.

Sep 02, 2010 | Texas Instruments TI-84 Plus Calculator

It sounds like you're in scientific or engineering notation.

Press MODE, use the arrow keys to highlight "NORMAL" on the first line, press ENTER and then 2ND [QUIT].

Press MODE, use the arrow keys to highlight "NORMAL" on the first line, press ENTER and then 2ND [QUIT].

Aug 25, 2010 | Texas Instruments TI-84 Plus Calculator

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,

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,

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

Aug 25, 2010 | Texas Instruments TI-84 Plus Calculator

E is the calculators form of scientific notation. so 2.145274703E14

is really 2.145274703 x 10^14 or 214527470300000

is really 2.145274703 x 10^14 or 214527470300000

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

make sure that your mode is in degree, not radian. YOu can change it by simply press mode and move down to the degree selection and press enter.

Mar 06, 2009 | Texas Instruments TI-84 Plus Silver...

-1E-13 is a very small number. When doing this kind of a problem you can regard 1E-13 as 0.

Remember that pi is an irrational number. It is only estimated on your calculator. I just played around with a TI-83 and found the following answers:

cos(pi/2) = 0

cos(2*pi + pi/2) = 0

cos(4*pi + pi/2) = 1E-13

cos(20*pi + pi/2) = -1E-13

As you know, that correct answer to each of these is 0. The calculator gives non-zero answers because some very small errors are accumulating. There is nothing wrong with your calculator.

Remember that pi is an irrational number. It is only estimated on your calculator. I just played around with a TI-83 and found the following answers:

cos(pi/2) = 0

cos(2*pi + pi/2) = 0

cos(4*pi + pi/2) = 1E-13

cos(20*pi + pi/2) = -1E-13

As you know, that correct answer to each of these is 0. The calculator gives non-zero answers because some very small errors are accumulating. There is nothing wrong with your calculator.

Nov 20, 2007 | Texas Instruments TI-83 Plus Calculator

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