Question about Texas Instruments TI-30XA Calculator

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Cant use calculator

We have a TI-30XA calculator. Not sure if it is stuck on a function or if it is the keys that have a problem. When we try to do simple addition on it 8 + 8 it shows an 8 than 8 again and you can' do anything. This is not strong suit for me and new one not in budget, can you offer any suggestions please?

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Hello,
Press [ON/AC]. you might have to do it severa times. If that does not work, remove batteries (non solar one).
Hope it helps.

Posted on Oct 01, 2009

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Posted on Jan 02, 2017

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Hi, how do i calculate log^-1 on my ti-30xa? for example, in order to calculate log^-1(-2), what do i do? thank you.


The inverse of the common log function is the power function with base 10 (10^). It shares the same physical key as the log. You acees the function by pressing [2nd] [log]

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

1 Answer

Okay so i am using a TI-30XA What is the button on this calculator for (Prb) ??


There is no probability key on the 30Xa as there is on the 30XIIS. The shifted functions of the 8 and 9 keys will calculate the number of combinations and permutations, respectively. The shifted function of the 3 key will calculate the factorial. There is no random number generator.

May 09, 2011 | Texas Instruments TI-30XA Calculator

1 Answer

I cant find the square roots button on the TI-30xIIs


It's the shifted function of the x^2 key, just to the left of the 7 key.

To calculate the square root of 3, press 2nd [square-root] 3 ) ENTER

Jan 29, 2011 | Texas Instruments TI-30XA Calculator

1 Answer

How do I find the carrot key on my TI-30XA?


I assume you refer to the caret ^ symbol, sometimes used as an operator for exponentiation.
  • for x^2 use the key [x²].
  • for x^3 use [2nd] [x³] (alternate function of the [1] key).
  • for all other exponents, use the key:
    mib8888_27.gif
E.g. to calculate 2^8, enter
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Jan 28, 2011 | Texas Instruments TI-30XA Calculator

1 Answer

Can I use the ti-30xa to find cube root, 4th roots, and 5th roots?


Use the x-root function, which is the 2nd function of the y^x key located just above the divide key. For example, to find the cube root of 8, press 8 2nd x-root 3 =

Nov 14, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

How do I do a factorial problem on a TI-30XA? for example 52!/5!


Two easy ways.

  1. You can use the factorial function, which is the shifted function of the 3 key. Calculate 52! and divide it by 5!.
  2. You can use the nPr function, which the is the shifted function of the 9 key. 52!/5! is 52 nPr 47 (47 is 52-5).

Nov 11, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

Where is the e button on a ti-30xa calculator


If you mean e^x, it's the shifted function of the LN key on the top row of the keyboard. If you mean the enter-exponent, it's the EE key just above the 7 key.

Nov 11, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

How do I calculate antilog using a TI-30XA?


For common antilogarithm use 2nd [10^x]. For natural antilogarithm use 2nd [e^x]. Those are the shifted functions of the two logarithm keys.

These two functions operate on the expression already entered into the calculator.

Example: to calculate the natural antilogarithm of .7:
. 7 2nd [e^x] =

Sep 16, 2010 | Texas Instruments TI-30XA Calculator

1 Answer

Finding a cube root on calculator


You can calculate cube roots by using the cube root function (the 2nd-shift of the 0 key). You can calculate arbitrary roots by using the x-root function (the 2nd-shift of the y^x key, just above the divide key).

May 27, 2010 | Texas Instruments TI-30XA Calculator

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Percentage function


Pick up the small instruction booklet here and look at page 4, the "%" key has 4 functions...

http://education.ti.com/educationportal/downloadcenter/SoftwareList.do?website=US&tabId=2&paneId=18#27

Aug 10, 2008 | Texas Instruments TI-30XA Calculator

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