Question about Texas Instruments TI-30XA Calculator

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I am looking for the instruction manual for the TI-30XIIS? I forget how to do fractions on this calculator..

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Posted on Sep 17, 2009

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30xiis decimals square root


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).

Nov 17, 2013 | Texas Instruments TI-30 XIIS Calculator

1 Answer

How to find G.C.F. on a TI-30xIIs calculator?


I don't think there's specific key for this but you can do it this way:

  1. Divide those 2 numbers for which you want to find gcf
  2. If you get result as decimal number press keys [2nd][PRB] to display it as fraction
  3. Also if fraction you get is in form a b/c (ex. 1 2/3) you have to convert it to form d/c (for 1 2/3 that would be 5/3)
  4. Greatest common factor is then 1st number divided by numerator (or 2nd number divided by denominator)
For example:
  • You want to find greatest common factor of 30 and 18.
  • You divide them: you should get 5/3 (after converting result to fraction of form d/c, as described in steps 2 and 3).
  • This means that 30/18=5/3=5x/3x (x is gcf here).
  • Now you know that x=30/5=18/3=6 so greatest common factor is 6.

I hope this helps :)

Sep 10, 2011 | Texas Instruments TI-30 XIIS Calculator

1 Answer

How do you get percentages and fractions?


To calculate using fractions you should use the [A B/C] button located on the 3rd row 2nd column of the keypad. For example, if you want to calculate 3 1/2 + 3/4, you should input 3 [A B/C] 1 [A B/C] 2 [A B/C] [+] 3 [A B/C] 4 [A B/C] [ENTER]. You should get an answer of 4 1/4. To convert that into percentages or decimals press the [2nd] button first then the [FD] button which is the [PRB] button. For example to make 4 1/4 to appear as 4.25 you press [2nd] then [PRB] ([FD]) then [ENTER]. If you want it into a percentage, multiple the decimal value by 100.

Mar 03, 2011 | Texas Instruments TI 30XIIS Scientific...

1 Answer

Is there an EE button for scientific notation of TI-30XS


On a TI-30XA the EE key is just above the 7 key.

On a TI-30XIIS the EE is the shifted function of the key just above the 7 key.

Feb 01, 2011 | Texas Instruments TI 30XIIS Scientific...

1 Answer

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

1 Answer

Manual


Look under Guidebooks at http://education.ti.com

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

1 Answer

TI-30xIIs calculator


This function is FIX or FSE near the dot [.] or above it, so press [2nd] the the [FIX] where it located button [.] for example then the dot [.] him self: [2nd] [FIX] [.]
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Apr 16, 2009 | Texas Instruments TI-30X-IISTK Scientific...

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TI-30xiis calculator


Press [2nd][FIX][.] the FIX is the rounding function.
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Apr 16, 2009 | Texas Instruments TI-30 XIIS Calculator

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Texas Instruments calculator TI-30XIIS


Theres an A b/c button. Pretend its 90/100 Do 90 then press A b/c then type 100 and =.


Feb 28, 2008 | Texas Instruments TI-30 XIIS Calculator

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