As the Casio FX-991es Plus got a modular function if not this there away of performing mod on it.

The Casio fx-991ES calculator cannot perform 7x7 matrix operations.

Interpolation mannual in fx-4800P - Fixya

www.fixya.com/support/t22818601-interpolation_mannual_in_fx_4800p

Jan 11, 2014 - interpolation mannual in fx-4800P - Casio Rare Vintage Scientific question. ... SOURCE: how can we do linear interpolation in casio fx-991ES ...

interpolate how can interpolate linear regression by casio ...

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Jan 11, 2014 - interpolate how can interpolate linear regression by casio fx-4800P -Casio ... SOURCE: how can we do linear interpolation in casio fx-991ES ...

how to perform linear interpolation manually and on casio fx ...

? 6:39
https://www.youtube.com/watch?v=rCVM6RWMjQ4
Jan 7, 2015 - Uploaded by Yabets Jab
In this video you can simply understand how to find a value of a given missing number in a table on Casio fx ...Missing: 4800p

Linear Regression on a Casio calculator - YouTube

? 6:25
https://www.youtube.com/watch?v=OGmHagjZPjg
Oct 31, 2012 - Uploaded by cpobyrne1
How to perform a linear regression on a Casio scientific calculator. Example uses a ... A Casio fx-83WA calculator is used for the demonstration. .... Lagrange Interpolation Easily Explained on Casio fx-991ES Calculator!Missing: 4800p

PDF]fx-570MS/991MS Additional Functions - Support - Casio

support.casio.com/pdf/004/fx570MS_991MS_E.pdf

Casiodisplay format (Disp) settings while the calculator is in the BASE ... Be sure to checkthe current calculation mode (SD, REG,. COMP ... Use [ and ] to display the expression 4 + 4. Press A ... want to perform scientific function calculations. COMP .

The Casio fx-991es, fx-570es and - Numericana

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The Casio fx-991ex succeeds the fx-991es (functionally identical to the ... Both are nonprogrammable nongraphing scientific calculators, with natural ... Side-by-side comparison of the fx-991EX and fx-991ES PLUS. ... Displays QR codes for smartphone use .... Work out a formula for many values of the input variables.

CASIO fx-991MS Calculator Tutorial: Lesson 5- Dealing with ...

Use nCr (the shifted function of the divide key). For example, to find the number of combinations of five things taken three at a time, press 5 SHIFT nCr 3 = and see 10.

Press [SHIFT][ division key]. It is marked with nCr.

You should try to explore the calculator to find its capabilities. You can also read the manual. Everything is in it.
Press the Mode button, then the down arrow key. On the second page of the mode list you find 2:Verif

In table Mode you can enter the formula for a function and generate a table of values. For a 991ES Plus you can enter two functions. However if you change MODE everything will be erased.
In EQN (equation) there is a certain number of built in formula types you can choose. You will be asked for the coefficients which will be used to solve the equation selected. However if you change MODE your lose what you entered. So basically you cannot save formulas to use as a memory aid (if that is what your intention is.) Sorry.

If it does not have the FACT key, you must factor by hand: Divide by 2, then by 3, 5, 7 etc.

Your calculator cannot perform inverse modulo calculations. To calculate yourself ( with pen and paper) you should consult a book on algebra.

Hi,
If you cannot find it, buy an FX-991ES. It is solar-powerd and it has the natural text-book display, which is a novelty in calculators.
I know that Staples carry the FX-991ES.

Hope it helps.