Question about Texas Instruments TI-83 Plus Silver Edition Calculator

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The square root of any number using the TI83+ is different by a small amount from the TI89 differentiated number. Is the a programing issue?

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Not the square root of any number. Both machines give the same result for the square root of 4, for example. The differences for other numbers are due to the fact that the two calculators use different processors and carry different numbers of significant digits for internal calculations. The square root of most numbers is an irrational number, with an infinite decimal representation. It has to be cut off somewhere. If you cut it off in two different places, you're going to get two different numbers (unless there happens to be zeroes where you cut...).

Posted on Jul 04, 2010

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1 Answer

How to get the root setting on ti83


If you mean the cube root of 8, press
MATH 4 8 ENTER
and you will get 2.

If you're trying to calculate something else or using a different key sequence, please reply to this post and give further details.

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TI-89 incorrect answer


You're not doing anything wrong. The TI-89 simply does not reduce odd powers in square roots. If you change the 13 to 14 you'll see a rather different result.

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How do i use the radical symbol on my ti-30xs


The radical symbol is used to calculate square roots. It a radical has a small 3 to the top left of it, it means cubic root. It it has a a small n or a small x to the top left of it, it means nth root.

The way any of these roots works is one of the following:
Enter a number (positive for a square root or an nth root with n even) then press the square root button. The result is then displayed.

The other way is to press the root key then enter the number whose root you wan t calculate. The result is then displayed.

If you press the square root key and a radical is displayed withy a left parenthesis, you can be sure it is the second way.

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How do I cube root a number on my ti89 titanium calculator?


To find the cubed root of say...8, then you would type this into the calculator:

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I received this solution, but at the end the calculator asked me about some invalid certificate. Now the ti 89 is stuck at the boot screen because if I retry, it goes thru the whole process again and asks...


Hello,
The answer I gave you was taken verbatim from the TI FAQ and knowledge base. I copied and pasted the part relevant to you calculator.
In any case, I sent an e-mail message to ti-cares@ti.com, giving the link to your original question and my answer to it. I took the liberty to copy/paste your present message. I also asked about that invalid certificate.
All we can do know is wait for their reply.

k24674.

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How to get the square root using a ti-30xa calculator?


Come on now....there are dedicated "square" and "square root" keys on the TI-30XA....

Enter your number e.g. 4, then press the "root x" key to get 2...

Press "x squared" key to get the square of 2 = 4

There's the even more useful "y to the power x" key and it's inverse "xth root of y" key.

E.g. Enter 2, then press the "y to the power x" key, then 5, then =, answer is 32 (2 x 2 x 2 x 2 x 2). Starting with 32, pres 2nd then the "y to the power x" key, then 5, then =, answer is 2, the 5th root of 32....

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Why do some TI83 program work on a TI84 plus and other don't?


Ti 83 and ti84 really have no difference and operate the same. There was something different or you had varibles used by multiple programs that conflicted w/ the ti84 and it would have done the same on the ti83. If you like to rework it and need help email me at raklein62@yahoo.com

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Cube roots on ti89


The TI-89 has one function to find whatever root you want of a number.

To find the cubed root of say...64, you would type:

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How do I solve radical expression and equations using the TI89?


1. square of 12
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3. square root of 128 y raise to 5
4. 6th root of 9 y raise to 2
5. cube root of 24 y raise to 5
6. 10th root of 32 x raise to 5
7. 15th root of 64 x raise to 9
8. 4th root of 10000
9. cube root of 192 p raise to 5
10. cube root of 256 y raise to 12

Jul 04, 2008 | Texas Instruments TI-89 Calculator

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