Question about Texas Instruments TI-30XA Calculator

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Negative Exponent On a TI-30XA how do you type in a negative exponent?

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  • Anonymous Jan 19, 2009

    how do i enter this problem intothe ti 30 2.54 x 10(negative 12 power

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2^-4

Posted on Feb 09, 2008

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1. Type in your base number

2. Press the EE button

3. Key in your exponent number.

4. Press the button on the bottom right hand side of the calculator that has both the positive and negative sign on it.

5. Press equals button.

Posted on Jul 30, 2008

  • 1 more comment 
  • Truefire Jan 24, 2011

    Thanks a million, that surely helps. I needed that very much and had looked both low and high for it but was unable to find any explanation of this even on the Texas Instruments website but you answered it for me.

    Great help, thanks for taking the time to post.

    Chris

  • Ijelisse Rodriguez
    Ijelisse Rodriguez Dec 06, 2011

    OMG!..this helped so WELL :D..thank you and I feel so dumb now that I never pressed that button until now..your smart lml jpjp

  • Anonymous Dec 04, 2017

    Actually, this is not correct. The proper way is as follows:
    1. Enter the base number.
    2. Press the key that has "Y" to the "x" (right below the OFF button).
    3. Enter the exponential.
    4. Press the button +?- on the left of the Equals(=) button and this will make the exponential a negative one.
    5. Press =
    :)

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2 then the yx button 4-

Posted on Feb 21, 2008

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1 Answer

I need help on typing in exponents like (6.02*10^23) (8.65*10^4)


6 . 0 2 EE 2 3 * 8 . 6 5 EE 4 =

The EE (enter exponent) key is located just above the 7 key. If you want a negative exponent, make sure you use the +/- key located just to the right of the decimal point key instead of the - key.

Aug 30, 2011 | Texas Instruments TI-30XA Calculator

1 Answer

How would type in scientific notation?


Use the EE key (just above the 7 key) to enter an exponent. For a negative exponent, use the +- key (just to the right of the decimal point key) to enter the negative sign.

For example, to enter 1.2 x 10^-21, press 1 . 2 EE +- 2 1

To switch the display mode to scientific notation, press 2nd [SCI] (the 5 key).

Jan 10, 2011 | Texas Instruments TI-30XA Calculator

1 Answer

How do I use a negative exponent when working working with natural exponential functions, on this calculator?


The same way you'd work with positive exponents. The only difference is that a negative exponent has a negative sign, entered with the (-) key just to the right of the decimal point.

The (-) is used to enter negative numbers, not just exponents. The - key is used to subract one value from another.

Sep 23, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

How do i divide by powers of 10 in my TI-30XA calculator?


The same way you would divide by any other number. Just use the EE key (just above the 7) to enter the exponent. If the exponent is negative, use the +<>- key (just to the left of the =) to enter the negative sign.

Aug 30, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

Negative exponents? .825/(10^(-3)) ? Not sure how to get it to do the negative exponent.


You entered it correctly. Although you can leave out the parentheses if you want. The calculator will do exponents before it does multiplication or division just like it does multiplication and division before it does addition and subtraction. It has a built in order for hierarchy of operations. You only need to use parentheses if you want to do something that is different from this order. FYI, dividing by a negative exponent is the same as multiplying by a positive exponent. You could enter it in either way. .825/10^-3 = .825*10^3 = 825. I hope this helps you out.

Dec 02, 2009 | Texas Instruments TI-30XA Calculator

1 Answer

Decimals in the exponents for TI-30Xa


Hi,
You have a key labeled [Y to the x], use it for all the powers or roots that do not have a dedicated key or key sequence. Let the key be [^]

Ex: 13.675 to the power 1.33 is entered as 13.675 [^] (1.33) [=].
The result is 32.41778634
Ex: (-64)[^](2/3) [=] gives 16 as result. The (-) is the change sign key
Ex: (2.87655)^(-6.778) is entered as 2.87655 [^] ( (-) 6.778 ) [=] 0.0007758
The (-) is the change sign (or the negative of), not the regular minus. When you have a negative exponent or a complicated exponent, it is safer to enclose the whole exponent inside parentheses.

Hope it helps.
Thank you for using FixYa

Nov 21, 2009 | Texas Instruments TI-30XA Calculator

2 Answers

1.19x10-4=?


You can download the guidebook for this calculator from TI here.

From page 16:
To enter a number in scientific notation:
1) Enter up to 10 digits for the base (mantissa). If negative, press the +/- key. (The key has two curvy arrows between the + and - but I can't do that on my keyboard.)
2) Press the EE key.
3) Enter a 1 or 2-digit exponent. If negative, press +/- either before or after entering exponent.

They give the example 1.2345 +/- EE +/- 65 which would display -1.2345 -65.

Apr 07, 2009 | Texas Instruments TI-30XA Calculator

1 Answer

Dividing by a negative exponent


(2x3^2) divided by (2x3^(-2))
just make sure to use double parenthesis around the negative exponent so that you get the right answer

Feb 08, 2009 | Texas Instruments TI-30XA Calculator

2 Answers

Scientific notation


You have to use the EE button right next to the parenthesis and the sigma plus button. So 1.7 EE and then your exponenet. If it is a negative exponent you need to hit the negative button before you type in the number.

Mar 24, 2008 | Texas Instruments TI-30XA Calculator

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