Question about Texas Instruments TI-83 Plus Calculator

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Why does -2 raised to 3 show 8 in the TI 83 plus.

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  • kakima Aug 06, 2010

    Exactly which keys are you pressing?

    (-) 2 ^ 3 ENTER produces -8 on my calculator. (-) is the key to the right of the decimal point.

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Having gone over a month with no response, I assume this is no longer a problem.

Posted on Sep 19, 2010

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1 Answer

How do I rise a value to a power in a TI 83 plus?


Use the ^ key just above the divide key. For example, to raise 2 to the third power, press 2 ^ 3 ENTER .

Jan 16, 2013 | Texas Instruments TI-83 Plus Calculator

1 Answer

Calculation errors


The sine of 90 radians is about 0.89, as your calculator shows. If you want the sine of 90 degrees, change the angular mode to degrees by pressing MODE, use the cursor keys to highlight "Degree" on the third line, press ENTER then 2nd QUIT.
You're calculating (8^1)/3 which is 2.6666667 . If you want the third root of 8, press 8 ^ ( 1 / 3 ) ENTER .

Apr 13, 2012 | Texas Instruments TI-83 Plus Calculator

1 Answer

How do I raise a number to a power using the TI-83 Plus calculator?


Use the ^ key, located just above the divide key. For example, to raise 2 to the fifth power, press 2 ^ 5 ENTER.

Oct 11, 2011 | Texas Instruments TI-83 Plus Silver...

1 Answer

Syntax error shows on screen of TI-83 Plus


It means there was a problem with your syntax which means you typed something incorrect. (like 8+*/8, which makes no sense and cannot be computed.)

Sep 15, 2011 | Texas Instruments TI-83 Plus Silver...

1 Answer

How would I key in 8! in my TI-83 plus cal. thank you Raymond


8. MATH. PRB. !.


That is how you get the factorial of a number.

The factorial is beneath the PRB list, which is inside the MATH menu.

Adios,


The Math Cheetah
411@themathcheetah.com

Mar 13, 2011 | Texas Instruments TI-83 Plus Calculator

1 Answer

What is the fourth root of 83?


Press 2ND [square-root] 2ND [square-root] 8 3 ENTER on your TI-83Plus and see the result. Alternatively, you can press 4 MATH 5 8 3 ENTER and save a keystroke.

Sep 09, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

My problem involves converting in chemistry and im just trying to figure out how to do a problem 0.58 x 6.022 x 10 raised to the 23/ 1. I know how to calculate the problem just cant read the answer a more...


Press the keys:
. 5 8 * 1 2 . 0 1 x^-1 * 6 . 0 2 2 2ND [EE] 2 3 ENTER
and you should get 2.9E22. Do you get something different?

* is the multiply key on the right, between divide and subtract.

x^-1 is on the left, below MATH.

EE is the 2ND function of the , key, just above the 7.

Another way to calculate this is:
. 5 8 / 1 2 . 0 1 * 6 . 0 2 2 2ND [EE] 2 3 ENTER

This should give you the same result.

Mar 10, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

I ask my TI-83 Plus to calculate (-64)^(3/2) The TI-83 Plus says the answer is -512i, but I think the answer should be 512i. Is the calculator wrong or am I?


You're both right, in a way. (-64)^3 is -262144. The square root of that is +/- 512i. Take your choice as to the sign.

For what it's worth, the TI-84, TI-86, TI-89, and the HP 50g all go with the negative value.

Jan 24, 2010 | Texas Instruments TI-83 Plus Calculator

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