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Http://www.usersmanualguide.com/casio/calculators/fx-115w

That is the link to the user manual.

To store a number....
1. Press SHIFT
2. Press RCL
3. Press the letter you want to use, any from A to M

Now it is stored. To view the stored number...

1. Press RCL
2. Press the letter you want to see

Posted on Mar 16, 2011

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Posted on Jan 02, 2017

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I just researched that for your model use the 'ln' key

Nov 26, 2013 | Casio FX-115W Plus Calculator

Sorry, the Fx-115W is unable to solve equations of any type. In addition to that, the more sophisticated Casios such as the FX-991 ES solve linear equations of no more than 3 variables.

Sep 09, 2012 | Casio FX-115W Plus Calculator

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.

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

For natural antilogarithm use e^x (shift ln). For common antilogarithm use 10^x (shift log). The ln and log keys are on the right side of the keyboard, just above the tan and cos keys.

Jun 25, 2010 | Casio FX-115W Plus Calculator

Use x-root-y, the shifted function of the x^y key, below ON and above LN.

Dec 27, 2009 | Casio FX-115W Plus Calculator

to store the numbers in memory its very simple...jus press some digits wch u want to store...then after entering the numbers press SHIFT then press RCL...then press any one alphabet frm A-M...then u r numbers are stored...to view the stored numbers press RCL and press the alphabet where u stored it...thats it its simple!!!!

Jul 24, 2009 | Casio FX-115W Plus Calculator

press MODE then select CALC then COMP to remove REG.

press MODE again select DISP then NORM1 to remove SCI.

press MODE again select DISP then NORM1 to remove SCI.

May 20, 2009 | Casio FX-115W Plus Calculator

when you press the keypad the calculator scanline translate and encode this function to digital formula(1&0)which the brain can understand(microprocessor)and this digital formula stored in a store called register which can easily called out to go to display where you can see it.

Nov 03, 2007 | Casio FX-115W Plus Calculator

This is described in the manual (link below) on page E-52
http://ftp.casio.co.jp/pub/world_manual/edu/en/fx-115ES_991ES_Eng.pdf
Also see example #083 in the appendix :
http://ftp.casio.co.jp/pub/world_manual/edu/en/fx-115ES_570ES.etc_Appendix.pdf

Jul 23, 2007 | Casio FX-115W Plus Calculator

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