Where can I get a battery cover for a ti-84 plus graphing calculator - the bright yellow school edition.

SOURCE: TI-84 Plus Calculator will not turn on, says ram is cleared

Thats because the OS is corrupt. Follow the manual and reload the OS, try the 2.43 OS

SOURCE: comma key on TI-84 Plus Siver Edition calculator.

The comma key on the TI 84 SE is above the 7 key, and it is just left of (, right of x squared, and below SIN. thats where the "," key is. If you're asking something else, please clearify. My understanding is that you don't know where the comma key is. 

SOURCE: antilog for ti-84 plus silver edition calculator

"2nd" + "log"

SOURCE: I can't graph on my ti-84 plus silv. edition

More than likely, you've put in a number in the xmin or xmax that is not correct. Example....you put in an xmin of 10 and an xmax of -10 which would be backwards. This could also happen in the ymin or y max.

The easiest way to fix this is to press zoom 6 which wil get you back to the default graph of xmin of -10, xmax of 10 and ymin of -10 and y max of 10.

If you can't see your graph on this screen and need to change the window, just be sure the number in the min for both x & y is smaller than the number in the max. You change your window size by pressing the window button.

SOURCE: How do i reset my

1. Press [2nd] [ ] to access the (MEM)ory management tool.
2. Press [7:Reset]
3. Press [1:All RAM]
4. Press [2:Reset]

1. Press [2nd] [ ] to access the (MEM)ory management tool.
2. Press [7:Reset]
3. Press right arrow to highlight [ARCHIVE]
   

• [1:Vars]
• [2:Apps]
• [BOTH]