20 Most Recent Texas Instruments TI-89 Calculator - Page 4 Questions & Answers

See cap image below

.2857142857142857 or 2/7

Solution that worked for me, taken from "Ti-89 titanium wont turn off":
Best Solution posted on Mar 05, 2008 Guest
Rank: Apprentice
Rating: 0%, 0 votes
I was able to fix the problem nut it requires several steps and only offers a temporary fix (untill the calculator is reset then it needs to be done again).
1. Press F5, then Dimond (symbol on buttion) then "Clear"
2. Press "alpha" then "S"
3. Press "0" dont mess with anything else here
4. Press "2nd" then "Quit"
Now you can turn it off but are missing the bottom text (rad,auto, etc...) to fix
6. Press "Mode" change radian to degree then "enter"
Now the text is displayed showing the mode.
7. Set the mode back to radian by reversing step 6.
Thats it I dont know how to get the bottom line back though...

the problem is you haven't given it anything to solve...
always add a comma and the variable after any solve, differentiate or intergrate problem...
eg:
solve(x^2=4) is wrong!
intead put:
solve(x^2=4, x)

Hope this helps

try calling the company

What do you want to do with this equation? Plot it? Differentiate it? Integrate it? Find its roots (there are an infinite number of them)?

I am not sure I understand but I will try. Do you want to generate a table of values for a surface you have graphed? If I guessed right then I am sorry to inform you that the TABLE is not available in 3D. I have just tried to generate a table for the surface z1=(x^3*y-y^3*x)/390 )an example from the manual). When I pressed [Diamond][Table] I got the message reported earlier.

1. square of 12
2. cube root of 48 a raise to 5 y raise to 6
3. square root of 128 y raise to 5
4. 6th root of 9 y raise to 2
5. cube root of 24 y raise to 5
6. 10th root of 32 x raise to 5
7. 15th root of 64 x raise to 9
8. 4th root of 10000
9. cube root of 192 p raise to 5
10. cube root of 256 y raise to 12

At the prompt for input press the ON key and then the ENTER key.

The function is unbounded. The function x*sin(x) oscillates from -x to x. As x approaches infinity the function also approaches infinity.

At first, APPS and then Statistics with List Editor. See capture image below

may not work with OS X Lion

A hard reset will clear all RAM.

1. Remove the batteries if that's the only way to turn it off.

2. Re-insert the batteries.

3. Press and hold down the left-arrow, right-arrow, and 2nd keys.

4. Press and release the ON key.

That should give you back control of your calculator. If it doesn't, add a comment here.

Domain errror meaning that an argument must be in a specified domain.It's not clearly what do you want to do but for three possible options solutions are on the captured images below(for radian mode).

To convert a result from symbolic to numeric, press diamond ENTER. To have all results appear in numeric form, press MODE F2, use down-arrow to get to the "Exact/Approx" line, press right-arrow, down-arrow to "3:APPROXIMATE", press ENTER ENTER.

The answer that you have received in actuality is correct. However, it is in exact form when the answer that you were looking for was an approximation (decimal form) answer. To achieve this all you have to do is hit the alpha button (the yellow button with a diamond in the center) and then enter which will give you your desired answer :-)

Remove one of the AAA batteries.Press and hold CLEAR while reinstalling the AAA battery. Continue holding CLEAR button and press ON.Release buttons and press CLEAR again.