Question about Casio Brand New-Fx-991es Plus - Scientific Calculator

# How to calculate parallel circuit in casio fx-991ES plus

Posted by Anonymous on

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Posted on Jan 02, 2017

SOURCE: mode change

Hello,
Just so that we know what we are talking about. The natural display is the display mode in which fractions appear on two lines, radicals appear as radicals, log can be calculated in any base, etc. If that is what you understand by Natural Display, we are in agreement.
To set this mode, you turn calculator ON and press [SHIFT][MODE] (setup). The option is called MathIO, and it has the number 1.
Thus [SHIFT][MODE][1:MathIO].
Hope it helps.

Posted on Oct 13, 2009

Hi,
First let us repair the terminology.

1. You can evaluate any expression (find the value of any expression for a particular value of its variable).Store a value in the variable, say X. Key in the expression and press [EXE].
2. You can consider your expression(should not contain a relational operator such as =, greater than, less than, greater than or equal to, less than or equal to) to be a function Y1(x) = expression and graph it, or generate a table for it. You will have several values of the function calculated at various points.
3. You can set your expression equal to 0 and find the particular value(s) of the variable (the unknown) that make the equality TRUE. That is called solving an equation.
I am not sure that it has a solver (solving an equation or an inequation) but you can always draw your expression as a function and explore the graph (SKTCH) to locate the roots (or zeros) of the functions (the values of the variable where the function equals zero.) That is called solving graphically.

Hope it helps.
Thank you for using FixYa and for rating this solution.

Posted on Dec 03, 2009

how solve interpolation by casio fx 991 ex

Posted on Nov 28, 2010

By 'log inverse', you presumably mean the inverse of the logarithm function. There are two logarithm functions on most scientific calculators. Firstly [ln], or natural logarithms, to the base e, where the inverse is e^x. Secondly [log], or logarithms to the base 10, where the inverse is 10^x.

Example 1 : ln(2) = 0.69314718 so e^0.69314718 = 2
Example 2: log(2) = 0.301029995 so 10^0.30102995 = 2

Posted on Oct 03, 2011

To convert a single answer from symbolic to decimal, press the S--D key (just above the DEL key). To have all answers come out in decimal format, press SHIFT MODE 2 to switch to the LineIO mode.

Posted on Aug 04, 2012

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You can't do that on Casio fx-991es plus calculator. Usually, infinity symbol available in calculators with CAS (Computer Algebra System).

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

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Apr 23, 2014 | Casio Brand New-Fx-991es Plus - Scientific...

### Is there a verify mode on the CASIO fx-991es plus calculator?

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

Mar 23, 2014 | Casio Brand New-Fx-991es Plus - Scientific...

### Is it possible to solve eqn in this 82ms calculator

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The FX-991ES Plus barely handles simple operations on matrices of dimensions up to 3X3. It cannot find eigenvalues or eigenvectors.

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

Apr 24, 2013 | Casio Brand New-Fx-991es Plus - Scientific...

### How to calculate parallel circuit in casio fx-991ES plus

Write your equations first, then try to use the calculator to solve the problem. If you don't know how to do it by hand, you won't be able to ask the calculator to do it for you.

Apr 19, 2013 | Casio Brand New-Fx-991es Plus - Scientific...

### I have to buy Casio FX-991W Plus. No one has it. I checked eBay and the Casio web-site. I need that one. where can I get it from?

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.

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