I have just changed the batteries for my calculator. but the the extreme 2 digits on screen have gone partly invisible. So I cannot see the tenth and zeroth values of a calculation. I checked the ribbon cable..that connects the diplay..it is perfectly fine. I have done the screen test..no go. Resetting the calc doesn't help. Nor does taking off batteries and putting them back on. Any help. Dont feel like throwing it away...but at the same time...repair would cost as much as a new calc.

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It seems the problem is on the lcd. technicians usually use soldering iron to apply heat to the cable connecting the lcd to its mainboard.

Posted on Sep 30, 2008

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F(x)=-x2 -1

Posted on Nov 12, 2008

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Posted on Jan 02, 2017

Here is a link to planet.Casio a French site that has some games for the FX-7400. Look for some programs called TETRIS.

http://www.planet-casio.com/Fr/programmes/voir_un_programme_casio.php?typ=a6&calc=2

http://www.planet-casio.com/Fr/programmes/voir_un_programme_casio.php?typ=a6&calc=2

Oct 23, 2013 | Casio FX-7400G Plus Calculator

Here are the capabilities of the Casio calculators.

The screen captures may not look like ones taken from the FX-7400G

plus display but the instructions are accurate.

In stat enter the values in List1 and the frequencies in List2**(if doing paired variable statistics)**

Press the key corresponding to the CALC tab

Press the 1-var tab and you get the results as seen on the screen with title 1-variable.

Other screens show some two-variable stats or regressions.

Use you knowledge of sample standard deviations and

population standard deviation to select which is relevant to your case.

They are given by xsigma-n and xSigma n-1

The screen captures may not look like ones taken from the FX-7400G

plus display but the instructions are accurate.

In stat enter the values in List1 and the frequencies in List2

Press the key corresponding to the CALC tab

Press the 1-var tab and you get the results as seen on the screen with title 1-variable.

Other screens show some two-variable stats or regressions.

Use you knowledge of sample standard deviations and

population standard deviation to select which is relevant to your case.

They are given by xsigma-n and xSigma n-1

Aug 15, 2011 | Casio FX-7400G Plus Calculator

In Run screen press [SHIFT][MODE] to enter SetUp.

Look for the line Input Mode (it is the 1st on the SD version). Highlight the line then press the TAB at the bottom of screen that says Lin (F2 key). Press EXE when you finish with SetUp.

To use the logab( function,

1. open the Run/Mat screen.

2.Press the OPTN key.

3.Press [F4:Calc].

4. Press [F6:].

5. Press [F4:logab]

the command is displayed on the screen,.

6. Enter the base then the argument).

7. Close parenthesis if you want and

8. press EXE.

Example logab(2,8) =3

Look for the line Input Mode (it is the 1st on the SD version). Highlight the line then press the TAB at the bottom of screen that says Lin (F2 key). Press EXE when you finish with SetUp.

To use the logab( function,

1. open the Run/Mat screen.

2.Press the OPTN key.

3.Press [F4:Calc].

4. Press [F6:].

5. Press [F4:logab]

the command is displayed on the screen,.

6. Enter the base then the argument).

7. Close parenthesis if you want and

8. press EXE.

Example logab(2,8) =3

Jul 06, 2011 | Casio FX-9860G Graphic Calculator

The natural antilog function is the shifted function of the natural log key (ln). The common antilog function is the shifted function of the common log key (log).

Dec 22, 2010 | Casio FX-260 Calculator

try resetting it

- press shift
- then 9
- then 3

Nov 27, 2010 | Casio FX-115ES Scientific Calculator

Hi,

Sorry to disappoint you: This calculator is not programmable.

Good luck.

Sorry to disappoint you: This calculator is not programmable.

Good luck.

Nov 30, 2009 | Casio FX-115ES Scientific Calculator

Hello,

I am sorry but I do not quite understand by the LR showing in the display.

For the FX-115ES, the only instance where the L and R appear is in the solutions screen.

When you use the Solve( function, the calculator searches for the solution. When the solution is found, the screen displays

(actual exemple)

**Y=3*X^2-2**

X= 0.8164965809

L-R = 0.

The L-R =0, shows that the precision of the solution, Left member -Right member =0.

To clear the screen you press [AC].

Hope it helps.

I am sorry but I do not quite understand by the LR showing in the display.

For the FX-115ES, the only instance where the L and R appear is in the solutions screen.

When you use the Solve( function, the calculator searches for the solution. When the solution is found, the screen displays

(actual exemple)

X= 0.8164965809

L-R = 0.

The L-R =0, shows that the precision of the solution, Left member -Right member =0.

To clear the screen you press [AC].

Hope it helps.

Nov 09, 2009 | Casio FX-115ES Scientific Calculator

Yeah I had the same problem, you need to open your calculator and check if all the screen cables is alright, i had just put sellotape on the back of the screen from inside so that the screen hold better, and it works for me if for you not maybe something broken in the schema but try it. The thing I know for sure the problem is in the screen or from where it get the data the schema. Tell me if it's working

Jul 01, 2009 | Casio FX-115ES Scientific Calculator

I have found the company site for you. Here it is. You can send an inquiry to them.

But from the looks of it, I believe this calculator is rebranded Casio FX-82. An even if I am wrong, you should still be able to make good use of the Casio FX-82 manual to understand how your calculator works. Scientific calculators do not differ much from one another.

Here is the link to the Casio FX-82 manuals.

But from the looks of it, I believe this calculator is rebranded Casio FX-82. An even if I am wrong, you should still be able to make good use of the Casio FX-82 manual to understand how your calculator works. Scientific calculators do not differ much from one another.

Here is the link to the Casio FX-82 manuals.

Jun 11, 2009 | Casio FX-260 Calculator

Turn it on, hit "shift", "set up", then "2". Puts the calculator in Linear I/O and gives yo decimals! It will stay in this mode 'til you change it.

Feb 04, 2009 | Casio FX-115ES Scientific Calculator

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