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My casio calculator gives all my awnsers in square form

How can I fix these Please help

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  • kakima Mar 31, 2014

    What model Casio calculator?



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If it is a modern calculator, try to press the following combination of


It works with CASIO modern scientific calculators, like the one which is in the Amazon link.

Posted on Mar 31, 2014


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: How do I get decimal answers

I had the same problem. To change the output to decimals, do the following:
Go to Math mode, then SHIFT, MODE (set-up), 2 (lineIO). This will cause answers to show in decimal format. I hope this helps.

I was able to find a manual at:

Posted on Jan 25, 2008

  • 7993 Answers

SOURCE: Hi, I have a Casio calculator fx-991MS giving me wrong answers!

I am only looking for a plausible cause of the error, because I do not believe your calculator can make such a mistake. I think you accidentally activated the Exponential display format and did not pay attention to the small, raised -03 that came at the end of the number displayed. It is a common mistake for those not very familiar with Scientific or exponential notation.

Let us try to reset your calculator to the normal (floating point) format.
Press the [MODE] key a number of times until you reach a screen that has FIX, SCI, NORM and under each one a number (FIX 1, SCI 2), Norm 3). To have the number of decimal place you gave in your result (4 decimal digits), you press 1 to select Fix then 4.

Be aware that scientific calculators usually stop displaying results in floating point format ( 0.0000045 ) if the number is smaller then 0.001. So basically, 0.00099 will be displayed as 9.90-04, -04 being raised above the level, and in smaller size.

Hope it helps.

Posted on Oct 02, 2009

Testimonial: "Thanks so much, its working now:) I thought I was going to have to buy a new calculator!"

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SOURCE: Percenteg Function problem in my Casio MJ - 120 Model Calculator

I found it by myself, I can help you.
1. Press (AC)
2. Hold (Rate) for about 2-3 second
3. Press (Set / TAX+)
4. Input the tax rate
5. Press (Set / TAX+)
6. Hold (Rate) for about 2-3 second again
7. Press (Set / TAX+) again
And Then you can test the rate .

From Thailand

Posted on Oct 19, 2009

  • 102366 Answers

SOURCE: i have a fx-300ES casio

Press SHIFT MODE 2 to select LineIO mode. Now all results will come out in decimal form.

Posted on Aug 31, 2010

  • 7993 Answers

SOURCE: i am a casio fx-82MS user. i would like to know

Press [MODE] and select [1:COMP]
Press [SHIFT][MODE] and select [3:Deg]. You can also use rad if the angle you are given is in radians.
To start the conversion
Press [SHIFT][-] (Rec) screen displays Rec(
Key in the radius r , ex: 3 screen displays Rec(3
Press [SHIFT][)] (,) to enter comma separator Rec(3,
Key in the angle in degrees, ex: 57.3; screen displays Rec(3,57.3
Press ) to close parentheses; screen displays Rec(3, 57.3)
Press [=]
Screen displays
Rec(3, 57.3)

X and Y are the values of the coordinates.

If angle is in radians, [SHIFT] [MODE][4:Rad] the command
Rec(3, Pi) gives X=-3, Y=0

I just realized that your question pertains to the FX82MS but is listed under the FX115ES (That is quite a difference) So my answer above does not concern you but I will leave it as is should anyone need the answer for the FX115ES.

Look at the enclosed screen capture for the FX82MS

Posted on Nov 16, 2010

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Related Questions:

1 Answer

Square root in answer

Press SHIFT [SETUP] 1 to set the MthIO mode.

Try calculating the square root of 8 (press sqrt 8 =). Do you get 2sqrt2?

Mar 03, 2014 | Casio FX-115ES Scientific Calculator

1 Answer

I have a casio fx-115ES and I want to do a cube root without answering in decimal forms

Sorry, but the fx-115ES can only display square roots in radical form. Cube roots are beyond its symbolic capabilities and will always be in decimal form.

Mar 08, 2013 | Texas Instruments TI-86 Calculator

1 Answer

Fx-115es radical notation

This calculator can show the results in radical form if it involves square roots. The 4th root of 243 is 3 times the fourth root of 3, which unfortunately is beyond the calculator's capabilities to display in radical form. Try taking the fourth root of 3 (or equivalently, the square root of the square root of 3) and you'll see the calculator display the result in decimal.

Feb 06, 2013 | Casio Office Equipment & Supplies

4 Answers

On my casio fx-82au plus calculator it won't

The capability of these calculators to handle irrational numbers in radical form is limited to square roots. Roots of index other than 2 are always displayed in their decimal representation.
If the calculator IO mode is set to MathIO, square roots will be displayed with the radical symbol. More complicated expressions with square roots might not be preserved and will be given as decimal numbers.

Oct 31, 2012 | Office Equipment & Supplies

1 Answer

I need to convert the rectngular form to polar form , so how can i do that ?

In Run screen, Press OPTN, Press F6> repeatedly until you see the ANGL TAB. Press F6> again (once or twice). You will see the TAB Pol( and Rec(
To convert from Rectangular coordinates to Polar press POL(, type in the x and y coordinates then EXE
Example: F1: Pol(1,1) gives (1.314213562, 45)
F2: Rec(square root (2), 45) gives (1,1)
Make sure the angle unit is set to the one you need (degree or radian).

Apr 19, 2012 | Casio Algebra FX 2.0 Calculator

1 Answer

Hi there, I have a Casio fx-991ES, and my calculator doesn't seem to be converting decimals in surd form... i.e. 0.3354101966 was the last number I typed in that didn't work... That, in surd...

The calculator can't identify that this is a surd unless you input it as a surd, ie as 3/(4*sqrt(5))= when it will then show the equivalent form 3*sqrt(5)/20 (obtained by multiplying top and bottom by sqrt(5)) and you can swap between the two forms using the S<>D button. Even adding the next 4 decimal places (hidden) won't allow the calculator to identify the underlying surd as this is simply too complcated a calculation.

Jun 08, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

Hi, i have a casio fx-82au plus, and it gives me the wrong answer when i press -X^2(X is any number. it'll give me -X. how can i fix this??

If you want to square a negative number, you should enclose it in parentheses then raise it to the 2nd power.
-5^2 =-25 .Priority to squaring ahead of negating
(-5)^2=25 .Priority to parentheses before squaring

Jan 28, 2010 | Casio FX-115ES Scientific Calculator

1 Answer

It wont give the answer to the square root of 76 :S

Maybe your syntax is incorrect. But more likely, it gives the right answer but you do not recognize.
Look on the narrow indicator band on top of the screen. If there is a Math indicator you are in MthIO (textbook display). In this mode results are in the form of radicals
SQRT(76) =2*SQRT(19) Here SQRT represents the radical (square root symbol).

If there is no Math indicator, your calculator is in LineIO and all results are in decimal form so that SQRT(76) =8.717797887

To set MthIO press [SHIFT][MODE][1:MthIO]
To set LineIO press [SHIFT][MODE][2:LineIO]
To toggle between radicals/fractions to decimal press [S<=>D] key above the [DEL] key.

Jan 19, 2010 | Casio fx-300ES Calculator

1 Answer

Square root of 0.5

If you want a number in decimal form all you have to do is press [S<-->D].

Hope it helps

Sep 02, 2009 | Casio FX-115ES Scientific Calculator

1 Answer

Square root on FX-83ES

make sure you havnt droppend your calculator as this can damage the chip, if so , re solder broken parts and it sshould work, this happened on mine and after i soldered it it is fixed.
online companies can fix it if you send it away

Jun 07, 2008 | Casio fx-300ES Calculator

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