How do i fix the window numbers on my calculator

HP lists on their site (and in user manual) a way to run a key test to see which keys are bad. I'd start there.Type "hp 12c key test" into your search window on your browser and the first thing that comes up should answer it. Took me about 4 seconds to find this.

Open the window configuration ans set Ymin to -10. You can also access the ZOOM function and select Zoom Standard.

When you select the FIX display mode, you are supposed to set the number of decimal digits the results will show. You can choose a number between 0 and 9.

you mean edit - just do 2nd , then window, walla - use your arrows to navigate and reset numbers, sometimes you need the table setup for the statistic and probability calculations - get the ti for dummies, and there is a statistics ti 84 book also that helps a lot.

Using the Windows calculator in scientific view, we get:
17^23 = 19,967,568,900,859,523,802,559,065,713
which is 29 digits long, ie much longer than the capacity of most calculators.

Because both 17 and 23 are prime numbers, it isn't possible to simplify this calculation, so you will need to use find a calculator that has sufficient capacity to be able to handle numbers of this length.

The xnumbers add-in for Microsoft Excel can also be useful for this sort of calculation (do an internet search for it).

Using the Windows calculator, MOD55 of the above number is 18.

Click on the Mode button twice until you see “SD”. Select 1. This puts the calculator in Statistics Mode. Enter the first number, 1.
Hit the M+. (n= 1 will appear in the window)
Enter the second number, 1.
Hit the M+ key. (n=2 will appear in the window)
. . . . .
Enter the last number, 7.
Hit the M+ key. (n=7 will appear in the window)
Hit shift, 2. (This invokes the S-Var option.)
Hit 1 for the sample mean. Hit Enter.
Hit 3 for the sample standard deviation that we will use in class. Hit Enter.

To put the calculator back to NORMAL mode, try [2nd][FIX] then [ . ] (decimal point).

Hello,
From what I know of other calculators, the FIX feature displays results in floating point mode of the type 12345.6789 depending on the maxim number of digits that the calculator can display.

Howerer, when you use the FIX command, you are expected to enter the number of decimal digits you want the results to have. Apparently, when you do no not specify that number, the calculator uses the default option.
I suggest you try [2ndF][FIX] 3. If that does not fix the number of decimal digits then try 3 [2ndF] [FIX]

Hope it helps.

Comments: - Just a thought. Pressing [ON] on a calculator that is in use, can for certain calculators reset defaults. So if you have no reason to press ON when the calculator is already ON, maybe you should not do it.

The [MODE] key can be used to select the modes described below.
Important! The following is a general explanation of Scientific Calculator modes. Note that your calculator may not include all of the modes described here.
1) Calculation Modes
Before performing a calculation, you first need to select the appropriate calculation mode.
COMP: Basic arithmetric calculations
(arithmetic operations, trigonometric functions, etc.)
COMPLEX: Complex number calculations
SD: Single-variable statistical calculations
(sample standard deviation, etc.)
LR or REG: Paired-variable statistical calculations
(linear regression statistical calculations, etc.)
BASE or BASE-n: Binary, octal, decimal, hexadecimal number system calculations
MAT: Matrix calculations (determinants, etc.)
VCT: Vector calculations
EQU: nth degree equations, simultaneous equations
2) Display Settings
Use these settings to control how calculation results are displayed.
Note that changing the Fix and Sci settings does not affect internal calculation results.
Norm: Exponential display format and cancels the currently configured Fix and Sci settings.
Fix: Specifies a fixed number of digits to the right of the decimal place.
Sci: Specifies a fixed number of significant digits.
3) Angle Unit Setting
(90°=?/2 radians=100 grads)
Deg: Degrees
Rad: Radians
Gra: Grads
4) Engineering Mode
Use this mode when you want to input and perform calculations using engineering symbols.
Please rate this response . .

Hello,
Frankly, I would love to see that. More seriously, now, if problem is software related you may be able to recover you calculator.

Use the link below to install TIConnect software
http://education.ti.com/educationportal/sites/US/productDetail/us_ti_connect.html You can also download the latest OS there.

Install TI connect on your computer and run it to open the main Window. Then connect you calculator to a USB port and, in the TIConnect main window Click the TIDeviceInfo icon. It will try retrieve the info.If it does your calculator is fine. Fill the screen with letters, symbols, numbers, and use TI connect ScreenCapture icon and compare the image with the actual screen. This may serve as a diagnostic tool in case you have to take calculator for repairs.

If it tells you Device Not found , Click communication settings in same pop up window where it said Not found, and Select Device, Select Cable, Select Port and try OK. If you are lucky and it works, you should reinstall the OS, which can be downloaded from education.ti.com. You drag and drop the OS on the TIconnect main window. Calculator must of couse be connected to computer.

If you have problem with TIconnect, use the calc-to-calc cable to transfer the OS of a working calculator. Yous should be on Receive mode [2nd][Link] --->>Receive. (When both calculators are ready hit enter.) The other calculator, you guessed exactly right, must be on Send [2nd][Link][SEND][G:SendOS]. (When both calculators are ready hit [ENTER])

If all that does not work, then it may be time to head for a place of worship to pray for its resurection, or look for a repair shop.
Hope it helps