Question about Texas Instruments TI-30 XIIS Calculator

# 30xiis decimals square root

I need to learn how to convert from decimals to square roots on my TI 30 XIIS calculator

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In general you cannot. If the square root happens to be an integer (ex: SQRT (4)=2) or a rational number (SQRT(16/9)=4/3) you can convert from one form to the other, but that is the same as converting from a decimal to a fraction.
However you can never convert 1.414213562 (the first 10 digits of SQRT(2)) into the radical SQRT(2). The reason is that root here is an irrational number: its decimal representation is endless and not periodic (non repeating).

Posted on Nov 18, 2013

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Posted on Jan 02, 2017

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## Related Questions:

### How do I cube root on a TI-30XIIS?

Press [3][2nd][^] and then enter number (for which you want to know cube root) and press [=].

Sep 09, 2011 | Texas Instruments TI-30 XIIS Calculator

### How to find the Cube Root using TI-30XIIS

Hi there,To find the cube root, you need to press 3, then press the 2nd key, then press the ^ key (4th below the 2nd key), then press the number you want to cube root.
Cheers,Alex

Jun 06, 2011 | Texas Instruments TI-30 XIIS Calculator

### How can you use the square root key to find the square root number?

Press 2nd [square-root], enter the number, press ) =

For example, to calculate the square root of 5, press 2nd [square-root] 5 ) =

May 07, 2011 | Texas Instruments TI-30 XIIS Calculator

### Have TI30xIIS calculator. How do I find square root of a number. For example, the square root of 9. Where is the square root? I know 3 is the square root of 9, but how do I do this on calculator. ...

To calculate the square root of 9, press
2nd [square-root] 9 ) =

The square-root is the shifted function of the x-squared key, just to the left of the 7 key. The close-parenthesis is needed to balance the open-parenthesis automatically inserted by the square-root function.

Feb 16, 2011 | Texas Instruments TI-30 XIIS Calculator

### Were is the square root button on the TI-30XIIS and how do I solve, what is the square root of 62

Square root is the 2nd function of the square key, to the left of the 7 key. To compute the square root of 62, press 2nd [square-root] 6 2 ) =

Nov 15, 2010 | Texas Instruments TI-30 XIIS Calculator

### I need to know how to take cube roots on the TI-30XIIS

Use [xth-root], the shifted function of the ^ key, above and to the left of the 7 key.

For example, to calculate the cube root of 8, press 3 2nd [xth-root] 8 =

Nov 02, 2010 | Texas Instruments TI-30 XIIS Calculator

### How do you convert decimals to fractions?

With the decimal value on the screen, press 2nd F<>D.

F<>D is on the PRB key, second row, second column.

Jul 02, 2010 | Texas Instruments TI-30 XIIS Calculator

### How do you find the square root of a number on the TI-30XIIS?

Use the square root function. It's the second function of the square key, just to the left of the 7 key.

May 03, 2010 | Texas Instruments TI-30 XIIS Calculator

### How do you use x of square root on a ti-30x

If you can't find the square root sign you could enter it like:
4^(1/2)=2 and 16^(1/2)=4 just what #your look for the square root of just take to the ^(1/2)
I'd like to give the key reference for the square root sign but, I loan my calculator to a student

Sep 25, 2009 | Texas Instruments TI-30 XIIS Calculator

### How to use the square root button on TI-30XIIS

First press [2nd] button then [root button] then the number you want then [ ) ] close and enter.

Jan 16, 2009 | Texas Instruments TI-30 XIIS Calculator

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