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I have a casio fx 7500G from 1991. when i do calculations, the answer is always 0.

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Posted on Jan 02, 2017


SOURCE: Reset?!


Posted on Mar 02, 2008

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SOURCE: Reset?!

Thank You so very much, this solution fixed my problem.

Posted on Feb 13, 2009

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SOURCE: Inputing factors on a casio fx-115es calculator

Unless I am failing to understand your problem, just combine like terms to get:
9x^2+2x+4 and then enter those coefficients into the quadratic solver.
That will get you the two answers -- both of them will be complex.
If you wanted to turn those two answers into factors (complex) of the original equation simply
change the signs on each and put an x in front.
Of course, the quadratic formula would also work.

Posted on Apr 28, 2009

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SOURCE: m mod n in Casio fx991MS

there is one button ab/c beneath CALC... if u want to calculate 7 mod 4 then... u should press 7 then ab/c 4 and equal to
1, 3 ,4 which is 4*1=4 and 7-4=3 remainder...

Posted on Jun 29, 2009

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SOURCE: problems with fractions on the Casio fx-115es

To convert fractions to decimals or decimals to fractions, you use the [S<->D] key. Each time you press the key the result is displayed in the other format.
Alternatively, If you multiply or divide two integer numbers put a decimal mark at the end of one of the numbers (any one). The result will be displayed in decimal format.

Hope it helps.

Posted on Sep 12, 2009

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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-115ES Scientific Calculator

You have the calculator set to Polar notation. In Polar form -2.16 is 2.16 angle 180. To get out of this, press SHIFT MODE down-arrow 3 1 .

Jul 29, 2012 | Casio FX-115ES Scientific Calculator

4 Answers

Hi there, I have a Casio fx-83GT Plus. At the moment when I do a sum 0.009x0.009 (for example) it gives me an answer of 8.1x10 to the power of -5. How do I get the calculator back to just giving '

Press SHIFT MODE 8 2 to select the Norm2 display mode.
Be aware that the calculator will switch to scientific notation if the magnitude of the number goes above 10^10 or below 10^-9.

Mar 15, 2012 | Casio Office Equipment & Supplies

1 Answer


Press 1 5 0 + 1 3 0 + 1 0 0 + 3 5 0 + 1 8 0 + 1 8 0 + 6 0 = on your fx-115ES to see the answer.

Aug 23, 2011 | Casio FX-115ES Scientific Calculator

1 Answer

I am using my Casio fx-300MS and have somehow gotten into the display where it puts my answers in exponential form; 5+5 = 1.0 exp10 to the 1. How do I return to getting my answers in standard form?

Display Format

To change the exponential display format, press the [MODE] key 3 times.

Fixed number of decimal places:

Press 1: Scientific Notation: 0

Press 2: SCI: 0

Press 3: NORM

You will then be prompted for NORM 1 or NORM 2. CHOOSE NORM 1

To return the calculation mode and setup to the initial defaults, press [SHIFT] [CLR] [2]

[=]. This will return the calculator to the following settings:

Calculation mode COMP

Angle unit Deg

Exponential display format Norm 1

Fraction display format a b/c

Decimal point character Dot

Percentage Calculations

Apr 13, 2011 | Casio FX-300MS Calculator

1 Answer

The answer is displayed in scientific notation and I want to change it back to normal.

Press the shift key, then the mode key, then find a menu item called fix. It will display 0~9. The number you choose is the number of decimal places the calculator will display in your answers. On my casio (fx-115 ES) the order to do it is shift->mode->6 then the # of decimal places i want it to go out to.

Nov 02, 2010 | Casio fx-300ES Calculator

1 Answer

What steps should I use to get the answer for the following using my Casio fx-115ES: [(In(1.02)-In(0.71)squared divided by 3.92 squared]? Thanks!

Enter it almost exactly as you typed it. Just remember that ln will automatically enter the left-parenthesis, and that you don't need to close all parenthesis before pressing =.

( ( ln 1 . 0 2 ) - ln 0 . 7 1 ) x^2 / 3 . 9 2 x^2 =

Aug 01, 2010 | Casio FX-115ES Scientific Calculator

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