Hello.
Means the memory is full and your TI needs to be reset:
There should be a Reset button (press) or a pinhole (push an opened paperclip in the hole and release).
Hope this helps.
SOURCE: "RAM Cleared"?
I got mine fixed.
You need to call TI and ask for help.
they will tell you to alot of things before gettin a new one for free
SOURCE: RAM Cleared
This is kinda a weird situation. Because it's usually the other way around. Your ram will clear if your calculator is frozen. So take out all 5 batteries from the back. Even the back up battery. Then reset it again. 2nd then + then 7 then 1 Then 2. Good luck.
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: RAM CLEARED?
Hello,
The most likely reason is that the backup battery is drained. Change the backup battery. When you get the Ram Cleared message, just press [CLEAR] to erase the message and start using the calculator.
Hope it helps.
SOURCE: TI-84 Incorrect sin/cos/tan values
What is so surprising? The sine and cosine functions have ranges that span the closed interval [-1,1]. As to the tangent function, its range is the the whole real line.
This being said, you should keep in mind that there are three angle units: the degree, the radian, and the grad.
When you want to calculate the sine, cosine, or tangent of a number, that number is not just a number. It is an angle, and as an angle it has a unit.
For this reason a calculator generally has two angle units defined (degree and radian), and possibly the grad. BEFORE calculating any trigonometric function you must ascertain that the angle is in the correct unit.
Clearly, in the problem you are trying to solve angle values are given in degrees, but your calculator is configured to interpret angles values in radians.
To set the default angle unit to degree press [MODE] , then press down arrow twice to reach the line (radian, degree). Highlight the word degree and press [ENTER] to set the default angle unit to degree.
Unfortunately the TI 8xPLUS family of calculators does not have a status bar on screen to remind you of the modes, and if you do not remember to check the current unit you get errors (at least unexpected results).
However, there is a way to avoid the errors and that is to enter the unit explicitly after the angle value. To do that you press [2nd][APPS] to open the (ANGLE) menu list. Try it.
By selecting the degree symbol and pressing [ENTER}, that symbol echoes on the screen just after the angle value. Closing the right parenthesis of the trigonometric function and pressing [ENTER] will give you the result in the correct unit of your choice. This can be done regardless of the default unit the calculator is configured for.
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What happens if you just press any key? Does it return to normal operation, in this case a cleared home screen?
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