Question about Texas Instruments TI-30XA Calculator

# Can I do numbers squared on this calculator, and how would I enter this?

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The TI-30XA is a scientific calculator with many functions. You can calculate problems with fractions and decimals, as well as solve problems of probability and functions. A scientific calculator computes the number sentence you type in using the order of operations: parentheses first, then roots and exponents, then division and multiplication and, finally, addition and subtraction.
How to Use a TI-30XA

• Step 1Press the [ON/C] key to turn on the calculator. Press the [OFF] key to turn it off. To use the calculator in solar mode, put the solar panel in the light and then press the [ON/C] key. To turn it off when in solar mode, slide the calculator cover back on and it will automatically shut off.
• Step 2Replace the batteries by first removing the cover and placing it face down. Use a Phillips-head screwdriver to unscrew the back panel. Remove the back panel and change the batteries. Screw the back panel back on. Press [OFF] [ON/C] and [ON/C].
• Posted on Aug 08, 2010

• Hilton Bristol Aug 08, 2010

• Use the basic operation keys for addition [+], subtraction [-], multiplication [x] and division [/]. To change the signs of your values from positive to negative or vice versa, press the [+ -] key before the numbers you enter. Use the parentheses, [(] and [)], to command the calculator to solve what is inside the parentheses first. Press the [=] to solve the number sentence you entered into the calculator.

• Step 4Find percents of a number by first typing in the number, then [x], then the percent number, [2nd], [%] and, finally, [=]. The [2nd] key allows you to use the commands that are written above each key. For example, to find 20% of 100, type in 100 [x] 20 [2nd] [%] [=] and the display will show the answer, 20.

• Step 5Turn decimals into fractions by entering the decimal value, then pressing the [2nd] and [F D] keys, then [=]. Turn the fraction back into a decimal by pressing [2nd] and [F D] again. For example, to turn 0.5 into a fraction, type in 0.5 [2nd] [F D] [=].
• Hilton Bristol Aug 08, 2010

• Turn mixed numbers into improper fractions by entering the mixed number first. Type in the whole number, then the [a b/c] key, then the numerator, the [a b/c] key again and the denominator. Next, press [2nd] [d/c] [=], and the calculator will convert your mixed number into an improper fraction. Press [2nd] [d/c] again to turn it back into a mixed number. For example, to turn 1 1/2 into an improper fraction type in 1 [a b/c] 1 [a b/c] 2 [2nd] [d/c] [=], and the display will show the answer 3/2.

• Step 7Switch the notation setting of the calculator between engineering, scientific and floating. To select scientific notation, press the [2nd] and [SCI] keys; this will display your answers in scientific notation as a number between 1 and 10 to a power of 10. Press [2nd] [ENG] to switch to the engineering setting; this setting displays values as a number with an exponent that is a multiple of 3. Press [2nd] [FLO] to switch to the floating setting. This is considered standard notation and will display the answer as a standard number.

• Step 8Use the left arrow key to go back and delete numbers to the right of the cursor that you typed into the display. This must be done before you press [=]. To clear the screen, values and operations, press [ON/C] and [ON/C] again in battery mode, or [CE/C] and [CE/C] again in solar mode.
• ×

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Posted on Jan 02, 2017

when you type -2 imagine your calculator doing the equation: -1 x 2. The - sign actually stands for a -1 so when you do -2 squared your calculator is simply following order of operations. It first squares the 2 making it 4, then it multiplies the negative making it -4. In order to get around this you must use parenthese. (-2)^2.

Hope this helped

Posted on Nov 23, 2008

SOURCE: Square Root

Don't forget to close the parentheses.

To compute the square root of 2, press SQRT 2 ) ENTER

Posted on Mar 09, 2010

not sure sry

Posted on May 24, 2010

Are we discussing squares or square roots?

The square root is the 2nd function of the multiply key.

There is no square function on the keyboard. Instead, simply raise the number to the second power using the ^ key just above the divide.

Posted on Sep 06, 2010

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.

Posted on Feb 16, 2011

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## Related Questions:

### Square roots doesn't work

Two ways the calculator may work:
Enter a positive number then press the square root key, or
Press the square root key then type in a positive number and press =.

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### Where can I get instructions for using an unidentified calculator?

If it has no name , it is probably a cheap one without many features. Most basic calculators have digit keys to enter numbers, and some operation keys to specify operations to be performed on the numbers entered.
Operation keys are +(add), -(subtract), X (multiply) , and / (divide). You may have an equal sign to display the result.
You may also have a square root key.
For an operation +,-,x, or / you enter the first number, then the operation key, then the second number and the = key. The result will be displayed.
For a square root , enter a positive number then press the square root key.

Good luck.

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### Square Root Again

On a TI 36X Solar, you enter the number and press the square-root key.

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### When I square a negative number, my calculator gives me a negative number. i.e. -4^2=-16

No, you're not squaring a negative number, you're negating a square. When you press (-) 4 ^ 2 ENTER , the calculator is calculating -(4^2). 4^2 is 16, and the negative of that is -16. What you want to do is to calculate (-4)^2 by pressing ( (-) 4 ) ^ 2 ENTER .

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### Which key on the Texas Instruments T1-30X2S calculater gives the square root of a number?

Here's where you can get 2 guides for your calculator (1 quick reference card, and a longer manual):

To calculate square root of 25, enter
[2nd Function]
[square root key]
25
[close parenthesis key]
[ENTER key]

the TI 30XII-S calculator then calculates and displays the answer, 5.

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### 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 ) =

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### I am having issues performing a simple function on my TI-30XS calculator. when I square a negative number - I get a negative number as opposed to a positive number?? example -3 - which I specify the...

You're not calculating the square of a negative number, you're calculating the negative of a square. You need to use parenthesis to indicate the square of a negative number.

You're calculating -(3^2), not (-3)^2.

To calculate the latter: ( (-) 3 ) x^2 =

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### How to work a casio fx115es calculator

To clear the display, press the AC button. To enter powers press the power key, labeled x with a raised small solid square. To use it enter the number: if the screen displays x with a dark square enter the exponent in the raised square. If the display shows a ^, enter exponent after the caret ^. Close any parentheses by entering the matching right parenthesis.

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### How can I get the square root of a number that a simple calculator can get?

To calculate the square root.
Press the square root key, enter a positive number, close the right parenthesis (may be omitted) and press [=].

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