20 Most Recent Casio FX-55 Calculator Questions & Answers

Sounds like you're in fixed point mode with 0 decimal places. To return to floating point, press FIX then . (decimal point)

Change the number display to standard, or normal, or float whichever is implemented on your calculator.

->+

The RAN# button generates a random number between 0 and 1.If you want to flip a coin, see whether the generated random number is less than 0.5. Alternatively, multiply by 2 and see whether the integer portion is 0 or 1.If you want to flip a die, multiply the generated random number by 6, add 1, and ignore the fractional portion. This will give you a number in the range 1 through 6. A similar method will allow you to generate random numbers in any range.

Loook for a key marked F<>D and press it to toggle between fraction and decimal displays.

Press the FIX button change to floating.

Press the FIX key again to revert to standard display.

The problem is how to enter the number on the calculator. after it is typed in, you can use in any kind of operations.To enter Avogadro's number you enter the mantissa 6.02, then you press the [10^X] key then the exponent 23 The [10^X] is on the second row of keys below the [1/x] key. See picture. 6.02 [10^X]23 [=]

press the "MODE" button 3 times and then press 3 ..., now this is normal mode

press MODE key until it displays
Fix Sci Norm
1 2 3

press the 3 key to select normal mode
(1 selects fixed notation, 2 selects scientific notation)

Hello,
The display mode is set to FIX display format. You can change it to some other mode like SCIentific aor ENGineering. But you will have SCI or ENG on the screen. But why bother? These symbols are designed to remind you (if you need reminding) of the calculation and display modes your calculator is set to. It is not a defect.
Hope it helps.

Hello,
The display mode is set to FIX display format. You can change it to some other mode like SCIentific aor ENGineering. But you will have SCI or ENG on the screen. But why bother? These symbols are designed to remind you (if you need reminding) of the calculation and display modes your calculator is set to. It is not a defect.
Hope it helps.

A popular question. I Googled "casio fx-55 users manual" The first link will bring you to all the casio questions on this site. Others have posted the same problem. Possibly one of the existing solutions will work for you. I don't want to steal someone's solution. Look for yourself cause it will be a specific series of keystrokes.