20 Most Recent Texas Instruments TI-89 Calculator - Page 7 Questions & Answers

Undefined variable error message displays when you evaluate a user-defined function or run a user-defined program that references a local variable that is not initialized (assigned a value). You have to type LineVert 7 and then graph function x=7. See captured image

Data type error meaning that an argument is of the wrong data type.See captured image for the solution of your problem.

use the simultaneous equation solver software available on ur ti-89 and enter the equation in the form of augmented matrix and you will get ur answer.

You are trying to use a command or a function that requires you to give it some information to use. The information required is supplied between parentheses. What is inside the parentheses is called the argument(s). Each argument must have a certain type of data : scalar, vector, list, matrix. It happens that one of the arguments in your command or function must be of type list. Before calling the function you must have defined (created) that particular list and populated it with necessary values. That is all I can say, because I have no idea what you are trying to do.

Press diamond key, then window and then input the following values:xmin = -10xmax = 10xscl = 1ymin = -10ymax = 10yscl = 1xres = 2Then graphing function. See cap image

At first, you have to use t symbol for parametric functions when you operating with TI 89 Titanium. In your case you must input your relations as x1=3cos(t) and y1=2sin(2t). Then graphing it. See captured image

Set your calculator to RAD mode and then graphing functions.See example for y=sin x

For this problem you have to type in Y editor y1=arc sin x.See captured images

I reset my calculator and this solved the problem. To reset your calculator press [2nd], then [6] (Mem), press F1 (reset), Select 3 for all memory, and select Yes.

The calculator does not give a result of an integration with a constant. The form of the result will depend ob the EXACT/APPROXIMATE mode you have selected.
In the following screen capture, your integral has been evaluated with mode set to EXACT,AUTO, and APPROXIMATE. Pay attention to the syntax.



To set the computational mode to EXACT, press the MODE button use the Function keys F1,F2 or F3 to move from page to page, point to EXACT/APPROX and use the right arrow key to unfold the submenu, then the Up or Down arrow to select AUTO, EXACT or APPROXIMATE and press ENTER to SAVE Configuration.
If the integral cannot be found in EXACT mode, the calculator will echo the command without calculating the integral.

First the soft reset, just in case you haven't tried it yet: With the calculator turned off, press and hold the right-arrow, left-arrow, and 2nd keys. Press and release the ON key. Release the other keys.The hard reset: Remove one of the four AAA batteries. Press and hold the (-) and ) keys (the change-sign and close-parenthesis keys) as you reinstall the battery. Continue holding (-) and ) for five seconds before releasing.

Press left and right arrow and 2nd keys simultaneosly, hold it and then press ON. Release all keys at the same time and you will reset TI 89 Titanium

Type factor(x^2+4x+4,x)See cap image

At first, open TI Connect software and open TI Device Explorer. Then in the Actions menu choose option Select Device and select Port USB, Cable USB cable and Device TI 89 Titanium(all in the same line).See captured images:

You may get Memory Error when you try to access an archived variables. From the other hand Memory Error message is displayed if there is not enough free RAM to access the archived variables. For correcting Memory Error message use the 2ND then MEM to check RAM free size and 2ND then VAR-LINK to determine the size of the archived variables that you want to access. As the third step for correcting this problem deleting unnecessary variable from RAM and archiving large variables or programs. By the definition, the RAM free size must be larger than the archived variables

Dimension mismatch error occurs when arguments are not with same dimensions. Two or more arguments must be of the same dimension. For example, [1,2]+[1,2,3] is a dimension mismatch because the matrices contain a different number of elements. By the way, it it very easy to resolving your problem with differentiation. See captured image As a result of differentiation you had to obtained:(3b+2c)cos2x+(3c-2b)(sin2x)e^(3x)+2ae^(2x)

Dimension mismatch error occurs when arguments are not with same dimensions. Two or more arguments must be of the same dimension. For example, [1,2]+[1,2,3] is a dimension mismatch because the matrices contain a different number of elements. By the way, it it very easy to resolving your problem with differentiation. See captured image

As a result of differentiation you had to obtained: (3b+2c)cos2x+(3c-2b)(sin2x)e^(3x)+2ae^(2x)

At first, you can enter a complex number in r*exp(i*theta ) form. This is exponential form of complex number. However, use this form in Radian angle mode only. It causes a Domain error in Degree or Gradian angle mode. To resolving this problem type Mode then F1 and set up Radian mode

You have to type expand((38x-28y)^4,x). See captured images

Enter wanted angle value in Degree Mode and then use DD convert option. See captured image