Question about Texas Instruments TI-30 XIIS Calculator

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Memory and memory recal

Inserting memory values and recalling memory values

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The STO> button just above the on/off button is your memory store initializer.
example: 2x + 53 STO> y
stores "2x + 53" in a variable named "y".
To recall, just hit y and enter. In fact, if you type an equation like 3y^2 - 4y it will insert the data in for every "y" and give you:
(2x + 53)(6x + 155) as an answer.
To clear the memory:
DelVar y or F6 (2nd+F1) and clear all w/ single character names.
To recall a prevous answer, 2nd+(-) or type ans(1) for the last answer. You can also type ans(2) for the 2nd to last answer & so on.

Posted on Feb 05, 2008


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How do the memory keys work?

Memory keys normally work by adding and subtracting values to them. It looks like you have two memories available, memory I and memory II. (M- I M- II M+ I M+ II) You recall these values with the MR(C) keys to use them in other calculations. Finally, you can clear the memory using the MC keys. Sometimes there is not a MC key. In this case, the easiest way to clear the memory is to recall the memory, multiply it by -1, and add it to the memory. This should set it back to zero.

As an example, if we enter 5 M+ I, 10 M+ I, and then hit MR-I, we should get the answer of 15. If we then enter 13 M- I, and hit MR-I, we should now get an answer of 2. Now if we hit MC - I and then MR - I, we should get the answer of 0.

Let me know if you have any questions.

Good luck,


Mar 10, 2016 | Office Equipment & Supplies

1 Answer

Can't store values

You must select the memory location (M0 to M9)
To store 45 in Memory M7, type in 45, press the STOre key, then press 7.
To recall the contents of M7 press RCL 7

Apr 06, 2014 | Texas Instruments BA-II Plus Calculator

1 Answer

Memory store

Press SHIFT [STO] then one of the memories A, B, C, D, E, F, or M. You can then recall the value by pressing RCL and then the same letter.

Jul 15, 2013 | Casio FX991ES Scientific Calculator

1 Answer

How do I get 25.4 into Memory. I cannot find memory storage, but I know it's gotta be there?

2 5 . 4 STO 1
2 5 . 4 STO 2
2 5 . 4 STO 3
depending on which storage register you want to put the value into. You can recall the value by pressing RCL 1 or RCL 2 or RCL 3 as appropriate.

Aug 03, 2011 | Texas Instruments TI-30XA Calculator

2 Answers

What does MC, MR, & MS mean?


Welcome to Fixya. Heres the meaning that you're looking for.

MC - Memory Clear. this clears all contents of the memory
MR - Memory Recall. This displays the current content in the memory
MS - Memory Save. This saves the current display to memory.
M+ - Memory Add. This adds the current figure to the value already present in memory.

Thanks for using Fixya.

May 12, 2011 | Office Equipment & Supplies

1 Answer

Can't figure how to store and recall numbers in memory. fx-115ES

To store a number in a register, press SHIFT [STO] and then one of [A], [B], [C], [D], [X], or [Y] naming the register. To recall a number from a register, press RCL and then the name of the register.

There's also a register M. You can add to the value in M by pressing M+, subtract from the value by pressing SHIFT [M-], and recall from M by pressing ALPHA [M]. The key is just above the AC key.

Dec 07, 2010 | Casio FX-115ES Scientific Calculator

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What is RCL ?

If it shows up on the display, it means the calculator is standing by for input of a variable name to recall the variable's value. If you mean the key, that's the key used to recall a variable from memory.

Nov 06, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

How do you enter your variable?

The memory locations A,B,C,D,X,Y and M are available to store values in them. M is the constant memory.
To type the name of, say, variable X, you press the ALPHA key then the the key next to which is the X in cyan/Green color. If I remember correctly it is the key marked with a parenthesis ).

However to store a value in a memory location or to recall a stored value you use the STO key to store and the RCL key to recall. To store or recall there is no need to press the ALPHA key.

Jun 14, 2010 | Casio fx-300ES Calculator

1 Answer

Hi to use "STO"

You can store values in A, B,C, D, and M.
If you do not like the result recalled from a particular memory, Store the correct value in it. To clear the memories (default) store 0 in each of them.

Hope it helps.

May 09, 2009 | Casio FX-115ES Scientific Calculator

1 Answer

Store & Recall Buttons

STO 1 puts the displayed value into memory location 1.

RCL 1 brings the stored value back.

Same for memory locations 2 and 3.

If there's something in memory, M1, M2 M3 will show in the display, clear the memory by storing the value zero.

Note that anything stored into memory location 1, 2 or 3 over writes what was there. Memory values are retained through power off/on.

To add the displayed number to a memory location (instead of replacing the value stored), use 2nd, STO, n

To exchange displayed and stored values, use 2nd, EXC, n

n is 1, 2 or 3

Get the instruction booklet from TI's website (pdf download) if you don't have one

Sep 26, 2008 | Texas Instruments TI-30XA Calculator

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