# 20 Most Recent Texas Instruments TI-30 XIIS Calculator - Page 8 Questions & Answers

do:
6.022 X [2nd] [LOG] 23
2nd Log is equal to '10 to the power'

Texas... | Answered on Mar 17, 2011

The simple way with any calculator is to multiply your result by (pi/180) because degrees/360=radians/(2*pi)

Texas... | Answered on Mar 17, 2011

Use the power button that looks like " ^ ". The first number will be the number you want cubed and the second one will be the exponent you want (in this case, 3)
Example: If you want to cube 4, input it like this: 4 ^ 3. Hit enter and you will get 64.

Texas... | Answered on Mar 15, 2011

To enter a power of ten, use EE, the shifted function of the key just above the 7 key. For example, to enter 2 times ten to the 60th, press 2 2nd [EE] 6 0

To raise a number to another, use the ^ key, just to the left. For example, to calculate two raised to the 60th, press 2 ^ 6 0 =

Texas... | Answered on Mar 10, 2011

Make sure your calculator is in degree mode.
It is probably in radian mode so it can't calculate the inverse sin.
To change this, go to Mode -> Deg.
Hope this helps, cheers!

Texas... | Answered on Mar 07, 2011

((4/3)pi3X)^3. put 4/3 within its own parenthesis and multiply it by the symbol for pi (2nd,^), imput 3x and put that entire parenthesis to the exponent (^) of 3

Texas... | Answered on Mar 06, 2011

Calculate it as log(9)/log(3) or ln(9)/ln(3). For example, LOG 9 ) / LOG 3 ) = or LN 9 ) / LN 3 ) =

Texas... | Answered on Mar 04, 2011

1. Press 2nd button (upper left hand corner of the device, it's the blue button)
2. Press the x2 button (just to the left of the 7 key)
3. Put in the number you want to square root.
4. Press =
Hope that works for you.

Texas... | Answered on Mar 01, 2011

press the second key then it should be the x squared key

Texas... | Answered on Mar 01, 2011

use the up caret for exponents
ex: 10 to the 2 is 10^2

Texas... | Answered on Feb 28, 2011

Use the (-) key, just to the right of the decimal point key.

Texas... | Answered on Feb 26, 2011

3 2nd [xth-root] 1 2 5 =

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

Texas... | Answered on Feb 24, 2011

press the blue button marked as '2nd' and press the '^' button and enter 3.after that enter the number

Texas... | Answered on Feb 20, 2011

The square-root key must be pressed before the number. Press 2nd [square-root] 3 ) = and you should get about 1.73 (depending on the current display format).

Texas... | Answered on Feb 18, 2011

To raise a value to another value, use the ^ key above and left of the 7 key. For example, to raise 2 to the 3rd power, press 2 ^ 3 ENTER and see 8.

Texas... | Answered on Feb 16, 2011

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.

Texas... | Answered on Feb 16, 2011

For x to the 2nd power, that is the same as x squared.
There is a button on the left side that shows an x with a small 2 above it and to the right.
Punch x into the calculator then push the x squared button and read the answer.
For example, press 4 then the x squared button and the display should read 16.

There is also a button right above the 7 that reads x with a small -1 above it and to the right.
I'm not sure whether the E(sigma) pertains to that, however.
Press 4 then the x to the -1 power and the display should read 0.25

I hope this helps, let me know.
Gary

Texas... | Answered on Jan 30, 2011

First put the calculator in degree mode.
To convert from fraction to a decimal number first enter your fraction or, mixed number. I'll convert a mixed number to a fraction first since, I don't have a key for the symbol that shows that a number is a fraction on my keyboard. Example: [A b/c][A b/c][A b/cd/e][ENTER]
3/2 should be entered at the home screen. While at the Home screen enter, [2nd][FD][ENTER]
1.5 should now be displayed at the Home screen.
As you can see it is really just using the [A b/c] key to enter in your fraction and, [FD] key to do the converting. The [A_b/cd/e] key isn't necessary because, mixed numbers will convert to decimal numbers just like fractions do. I just don't have the key to show a fraction symbol that the calculator uses. So to show that symbol, I used the / symbol with the fraction number.

Texas... | Answered on Jan 29, 2011

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