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How to lock aa scientific calculator

The type of calculator is fx-991ES natural display

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Posted on Mar 09, 2019

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Posted on Jan 02, 2017

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SOURCE: casio scientific calculator fx-4000P

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Posted on Jul 18, 2008

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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

  • 8081 Answers

SOURCE: how to change or put math mode without fractions

I am not sure what you want because the mathIO mode IS THE ONE THAT DISPLAYS results as fractions.
You have two display modes: MthIO (with fractions, radicals) and LineIO (with decimals). Which one do you want?
To set MthIO press [Shift][MODE][1:MthIO]
To set LineIO, press [SHIFT][MODE][2:LineIO]

Concerning the scientific display mode.
Decimal numbers can be displayed in various formats, Fixed,Scientific, and Normal. If you do not want scientific display of results, just set the mode to Fix(ed) and specify the number of decimal digits. However if a number to be displayed (a result) is too small or too large IT WILL BE DISPLAYED in scientific format regardless of the mode you selected.



Posted on May 16, 2010

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SOURCE: Trying to get calculator to display in scientific notation

Press the [SHIFT][MODE] to access the (SETUP) screen. -See the screen capture below. Press [7:Sci] to select the output display format to be Scientific.
You will then be prompted to key in a number between 0 and 9 to choose the number of decimal digits.

If you do not want fractions nor radicals set the default Input/Output format to LineIO.
To do so press [SHIFT][MODE][2:LineIO]. After that perform the steps given above to select Scientific format for the output.
c983265.jpg

Posted on Jul 18, 2010

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SOURCE: My Casio fx-115 ES Natural Display is solving 21.9

If the calculator is in the MthIO mode it will always attempt to display the result as a fraction. To convert a single result to decimal, press SD. To have the result always come out in decimal (according to the selected display mode), press SHIFT MODE 2 to select the LineIO mode.

Posted on Oct 07, 2010

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I've got a casio fx 991plus calculator and I want to know how to use feet and inches in the calculation displays, like how is used meters and centimetres in the display


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

www.numericana.com/answer/casio.htm
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 ...


Dec 03, 2015 | Casio Office Equipment & Supplies

2 Answers

I use casiofx-991ES,its numbers looking upside down.How can i fix it?


I had the same problem with my casio fx-991ES calculator, i tried initializing the calculator by keying in shift9(CLR)3(all)=(yes) but that didn't fix the display,so i opened the calculator and removed the battery for about 5days then put the battery back guess what the display started operating well! no more inverted display or numbers.if initializing the calculator does not fix the problem,take out the battery for some few days then put it back in that should fix the problem.cheers

Sep 27, 2013 | Casio Fx-991es Scientific Calculator

3 Answers

My casio calculator is giving answers always in fraction form. I need to get the answers in decimal form (my calculator is fx-991ES)


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.

Aug 04, 2012 | Casio Brand New-Fx-991es Plus - Scientific...

1 Answer

Casio fx-991es plus upside down display


I would take it apart and see if they installed the display upside down. I wouldn't think the wires would be long enough to do this, but maybe that is the way it is laid out.

Good luck.

Paul

Apr 07, 2012 | Casio Brand New-Fx-991es Plus - Scientific...

1 Answer

What calculator would you recommend for polar and rectangular formula's?


Are you serious?
No calculator purchase should be solely based on such a trivial matter.
But if you are looking for a very good scientific calculator, I would suggest the new Write View EL-W506/W516/W546 calculators by Sharp, or the FX-115ES/991ES Natural Display by Casio.

With these calculators you can see what you enter displayed as in textbooks. Naturally, they all do coordinates conversions from Polar to Rectangular and from Rectangular to Polar.

Jun 17, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

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.

Oct 13, 2009 | Casio FX-115ES Scientific Calculator

1 Answer

How do you compute Log base 5 to the exponent 5.9? i cant figure it out on this computer


Hello,
There is something missing in the formulation.

Any way you cannot calculate it directly on this calculator.You need to use the formula

log_5 (a)= ln(a) x log_5 (e) a is a positive integer

where log_5 means log in base 5 (my notation for the function)
e is the base of the natural logarithms (e=2.71928 )
ln is the natural log function

To obtain a more accurate value of e, calculate e^(1)
Here are some values of log(e) in different bases (for you to play with)

log_2(e)= 1.442695041
log_3(e)=0.9102392266
log_4(e)=0.7213475204
log_5(e)=0.6213349346
log_6(e)=0.5581106266
log_7(e)=0.5138983424
log_8(e)=0.4808983470
log_9(e)=0.4551196133
log_10(e)=log(e)=0.4342944819

If you have to use log in bases other than 10 or e, you will need a claculator that does that at the touch of a button. Some calculators that handle these calculations are the Casio FX-300ES, FX-115ES,FX-991ES, those called Natural Display, or WriteView(Sharp) or Textbook display.

Hope it helps.

Sep 03, 2009 | Texas Instruments TI-30XA Calculator

1 Answer

Can I simplify radaicals with the Casio FX-300MS?


Hello,
This calculator transforms every radical into a decimal number. It does not perform exact calculations with radicals. For that you would need a Casio FX-115ES or FX-991ES (Natural Display).
Hope it helps.

May 13, 2009 | Casio FX-300MS Calculator

1 Answer

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.

Nov 27, 2008 | Casio FX-115W Plus Calculator

1 Answer

Casio FX-300MS - Simplifying Radicals


Hello,
Sorry the calculator handles fractions but not radicals. You may be interested in the newer Casios FX-115ES, or FX-991ES, (Natural display).
It handles a lof more that radical and fractions.
Hope it helps.

May 28, 2008 | Casio FX-300MS Calculator

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