20 Most Recent Texas Instruments TI-89 Calculator - Page 5 Questions & Answers

Press 0 ALPHA [H] 0 1 0 0 1 1 1 0 MODE F2, scroll down to the "Base" line, press right-arrow, select "BIN" then press ENTER ENTER ENTER.As a note, 01001110 looks suspiciously like a binary number.

TI calculators have an annoying habit of dimming the screen when the batteries are changed so that it appears as if the calculator isn't turning on. Turn the calculator on (or at least press the ON key). Press and hold the 2ND key, then repeatedly press the + key and see whether the display lights up. If you go too far, use the 2ND and - keys.

To get a numerical value for a single result, press the diamond button then the ENTER button. To have all results come out numerically, press MODE F2, scroll down to the Exact/Approx line, right-arrow, select 3:APPROXIMATE, then press ENTER ENTER.

Divide both sides by pi to get A/pi = r^2

The error data type means that the program is expecting a specific type of data ( number, list, matrix, real, complex, string, etc.) while you are feeding it some other type of data. The point in the program where you are taken when the error occurs is where the exception was launched.

A common source of error stems from the use of variables that are global and defined in some other program. You can use the same name inside your program as long as you declare the variable local.
If your program is in fact a function, then all its argument must be passed in the call to the function: You cannot ask a function to read your input.

I will not pretend to know why you get the error, but the few comments I made above may help you debug the program.

By the way, if you are interested a Cobebrook online calculator, here is a link

Have you downloaded 3rd party programs or games. reinstall might help

I had the same problem, this worked for me:

Mode -> page 2 -> Exact/Approx change from "Exact" -> "Auto"

Don't spell it out. Use the integral sign, available by pressing 2nd then 7.For this example, press 2nd 7 2nd Y X ) , ) ENTER2nd 7 gets you the integral, 2nd Y gets you the sine.

If you and hold down simultaneously [2nd],[<],[>],[ON] it will get get rid of the message but will erase everything stored in ram. I had the same problem and this worked for me.

If you cannot see anything on the screen, you may need to adjust the graphing TI 89 Titanium calculator contrast : 1.To darken the screen, press and release 2nd key, and then press and hold up-arrow key until the display is sufficiently dark. 2. To lighten the screen, press and release 2nd key, and then press and hold down-arrow key until the display is sufficiently light.

Here is the link to the education.ti.com website.

What are your variables?