Question about Canon P170-DH Calculator

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When i press CE on the tape i get -#C

How do i get rid of "-#" cause when i do addition the numbers turn out red... i never use to get that, and besides the number i get "-+"... what can i do?

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Re: when i press CE on the tape i get -#C





Posted on Feb 19, 2008

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CE button doesn't clear on my SHARP EL-2630PIII

CE stands for Clear Entry. It clears the number that one just entered. To clear the results of a previous calculation use the key AC, if calculator has one. Otherwise try pressing the CE key twice or enter 0, because that is what the clear button will do.

Sep 30, 2013 | Sharp EL-2630P Calculator

1 Answer

Why when I press CE to clear a number is it still saved, how can I truly zero out the numbers?

CE usually stands for clear Entry. It clears what you entered before pressing the = or EXE key.
The only number you can zero out (as you say) is zero itself. The others, you can just erase them. Press the AC (Clear all) or a reset button to clear what is stored in variables.

Sep 24, 2013 | Sharp EL-2630P Calculator

1 Answer

How to calculate 1.025^4

How to Use a TI-30XA
The TI-30XA is a scientific calculator with many functions. You can calculate problems with fractions and decimals, as well as solve problems of probability and functions. A scientific calculator computes the number sentence you type in using the order of operations: parentheses first, then roots and exponents, then division and multiplication and, finally, addition and subtraction.

  1. How to Use a TI-30XA
    • 1

      Press the [ON/C] key to turn on the calculator. Press the [OFF] key to turn it off. To use the calculator in solar mode, put the solar panel in the light and then press the [ON/C] key. To turn it off when in solar mode, slide the calculator cover back on and it will automatically shut off.

    • 2

      Replace the batteries by first removing the cover and placing it face down. Use a Phillips-head screwdriver to unscrew the back panel. Remove the back panel and change the batteries. Screw the back panel back on. Press [OFF] [ON/C] and [ON/C].

  • Use the basic operation keys for addition [+], subtraction [-], multiplication [x] and division [/]. To change the signs of your values from positive to negative or vice versa, press the [+ -] key before the numbers you enter. Use the parentheses, [(] and [)], to command the calculator to solve what is inside the parentheses first. Press the [=] to solve the number sentence you entered into the calculator.

  • 4

    Find percents of a number by first typing in the number, then [x], then the percent number, [2nd], [%] and, finally, [=]. The [2nd] key allows you to use the commands that are written above each key. For example, to find 20% of 100, type in 100 [x] 20 [2nd] [%] [=] and the display will show the answer, 20.

  • 5

    Turn decimals into fractions by entering the decimal value, then pressing the [2nd] and [F D] keys, then [=]. Turn the fraction back into a decimal by pressing [2nd] and [F D] again. For example, to turn 0.5 into a fraction, type in 0.5 [2nd] [F D] [=].

  • 6

    Turn mixed numbers into improper fractions by entering the mixed number first. Type in the whole number, then the [a b/c] key, then the numerator, the [a b/c] key again and the denominator. Next, press [2nd] [d/c] [=], and the calculator will convert your mixed number into an improper fraction. Press [2nd] [d/c] again to turn it back into a mixed number. For example, to turn 1 1/2 into an improper fraction type in 1 [a b/c] 1 [a b/c] 2 [2nd] [d/c] [=], and the display will show the answer 3/2.

  • 7

    Switch the notation setting of the calculator between engineering, scientific and floating. To select scientific notation, press the [2nd] and [SCI] keys; this will display your answers in scientific notation as a number between 1 and 10 to a power of 10. Press [2nd] [ENG] to switch to the engineering setting; this setting displays values as a number with an exponent that is a multiple of 3. Press [2nd] [FLO] to switch to the floating setting. This is considered standard notation and will display the answer as a standard number.

  • 8

    Use the left arrow key to go back and delete numbers to the right of the cursor that you typed into the display. This must be done before you press [=]. To clear the screen, values and operations, press [ON/C] and [ON/C] again in battery mode, or [CE/C] and [CE/C] again in solar mode.

  • Hope it helps your problem. Thanks!

    Jan 03, 2013 | Texas Instruments TI-30XA Calculator

    1 Answer

    Sharp EL- M332 caluclator- have a 'O' along top line- can't seem to get rid of it- must have accidentally selected something. It is not showing any decimals.

    Hold (C.CE) then whilst holding it press (M+) for approximately a second and it will move one place along in the three settings (F, 2 and 0) F shows full decimals, 2 shows 2 decimal places and 0 as yours is set to now round to the nearest whole number. I have just been sat at my desk trying to work this out as my calculator was too set to '0'. Took me reading the 'DEC DET' text with lines pointing at 'M+' and 'C.CE' to finally crack it!

    Hope this helps.

    Apr 04, 2011 | Sharp ELM332BBL Calculator

    2 Answers

    How do I set the date for this Canon MP11dx? I

    Start by pressing down on the clock/calendar button for about 3 seconds. Then press the equal ( = ) sign to input the correct date. Same process for setting the time. then press the ce/c button to clear the data on the screen. When u want to print the date, press the calendar button. this will automatically print it. then press the ce/c button again so u can start calculating.

    Apr 09, 2010 | Canon MP-11DX Calculator

    1 Answer

    Why does the Canon mp18dii have a E? I am assuming that it is an error but it does not go away unless I unplug it for a few hours. After using it appears again.

    This problem can be caused by the printer being jammed. Press the C/CE button and watch the roller with the numbers on it. If it is not making a full revolution then take a small screwdriver and "help" the large wheel on the left side near the bottom. The wheel should turn counter clockwise.

    Jan 16, 2010 | Canon Calculators

    3 Answers

    Sharp ELSIMATE EL-240SA - how do you stop this calculator from rounding up to whole numbers? I generally need two decimal places. Gordon Gillies

    From the manual:

    Numbers of decimal digits of calculation results can be specified by pressing [C-CE] twice, then press [C-CE]and [M+] simultaneously.
    The decimal digit assignment will appear as “F” (for “floating point”), “2” or “0” on the LCD. (The default is “F”.)
    Press and hold [C-CE] and [M+] until the symbol changes.

    Jul 06, 2009 | Sharp Calculators

    1 Answer

    Canon P170-DH

    for calandar
    turn on.
    press clock calandar button, top row second from left.
    press time set button, second row from left, 3rd button from top, (has time set printed diretly above)
    enter numbers, say 03 05 2009
    press time set button 3 seconds
    press CE/E, red key at bottom left corner.

    turn on
    press clock calandar button once, date will show
    press clock calandar button 2nd time, clock will show
    press time set once
    enter time
    press am/pm button (below time set)
    press time set for 3 seconds
    press CE/E red button to return to calculation mode

    thats it

    Jan 10, 2009 | Canon P170-DH Calculator

    5 Answers

    Set time & date on Cannon P100-DH II

    Press the Date and Time button, when you see the date on the display screen, then press = and hold, you will see the first number blinking, then just type in the numbers (day - month - year) it moves along as you type, when you are done, press = for 1 sec the date is now set. Now to set the time press the Date and Time button again, you will see the time showing on the display, press and hold = until the firs number starts blinking, then proceed to type in the time, when you are done, press = for 1 sec the numbers are supposed to stop blinking. the date and time is set, then clear your screen (press CE/C) the date and time are saved.

    Feb 19, 2008 | Calculators

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