Question about Casio FX-115ES Scientific Calculator

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Aqccidentally press some button and 'fix' symbol appears

Accidentally press some button and 'fix' symbol appears. how to remove that function in casio fx-570W

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You have set the calculator to a fixed number of decimal places.
To reset calculator, easiest way is just to go back to the defaults - SHIFT, 9, (CLR), 3, (All), =, (Yes)
This will clear anything you have put in memory

Posted on May 30, 2010

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Posted on Jan 02, 2017

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One of the back buttons serves as a lock button to protect against accidental pressing. Find out which one by holding then one by one for a few seconds until you see the unlock symbol appear.

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My Casio fx-300ES calculator has a problem when i press the fraction button under Abs i get a symbol looking like "_l" anyway to fix this?


That is what you will get if your calculator is configured for the Line IO mode. If you want fractions to appear as in a textbook, you should configure your calculator's Input/Output mode to be MathIO. To do so press [SHIFT][MODE] to enter (SetUp) and select [1:MathIO]

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What function should it be on to get a whole number answer for division problems EX: 15 divided by 2


15 divided by 2 isn't a whole number.

If the calculator is showing a fraction and you want to see it as a number, press the S--D key to switch between symbolic and decimal values. To have all results appear in numeric form, press SHIFT MODE 2 to select the LineIO mode.

If you want to set the calculator to show only whole number, press SHIFT MODE 6 0 to select FIX 0 display mode.

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Can the casio fx9750gplus calculator show differentiation/integration etc. for example differentiate 5x^3 and have it show 15x^2?


Sorry to disappoint you but the Casio FX-9750Gplus does not handle symbolic calculations. It does not have a Computer Algebra System or CAS. It can however calculate the numerical integration of a function between two limits, as well as the first and second derivatives of a function at a given point.

  1. To access the numerical integration and differentiation,
  2. Press the Menu button.
  3. Highlight the RUN icon and press [ENTER/EXE]
  4. Press [OPTN][F4:CALC]. Then
  • Press [F2:d/dx] for first derivative
  • Press [F3:d^2/dx^2 for second derivative,
  • or [F4:integral]

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There is a button below the face of the watch that has the atomic watch symbol on it. Hold this button down until you hear a beep and it will turn that function off. To turn it back on, press & hold the same button until you hear a beep.

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Sounds like you have removed the hotkey functions.

You will need to go on here,

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Find your model in the A3000 series and download both of the "Utilities" in the "Other" section and install them. Should be ok after this is done.

Craig

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Sir you have activated FN keys which caused others functions to get activated on #2 key. So just de-activate FN byt pressing its key.

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Toshiba Satellite laptop Model 035 S611


If it is completely frozen press and hold the power button (you will lose any unsaved work) it should turn off, failing that remove the power source.

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Locked keys


Hi. I have a different Jwin model radio to yours, but they might have this in common: is there a 'hold' button on yours? If so, this is used to 'lock' all the buttons so that you don't switch it on/ change stations etc accidentally. Look for a 'key' symbol on your display, and press AND HOLD the 'hold' key until the symbol disappears. Pressing the 'hold' button briefly will make the symbol re-appear, and lock the keys again.

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