Question about Texas Instruments TI-89 Calculator

Try not to set your first variable as zero

thats not a lot but thats what happened to me in my class

Posted on Aug 27, 2008

Hi,

a 6ya expert can help you resolve that issue over the phone in a minute or two.

best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).

click here to download the app (for users in the US for now) and get all the help you need.

goodluck!

Posted on Jan 02, 2017

You might have used an inappropriate variable name.

For functional graphs y=F(x), the independent variable must be X

For parametric graphs, the independent variable in the x_t and y_t functions must be t.

For polar graphs the independent variable must be Theta, and for sequence graphs, it must be the special wiggly n.

Once you select the type of graph, the independent variable is entered by pressing the key marked**X,T, Theta, n**.

For functional graphs y=F(x), the independent variable must be X

For parametric graphs, the independent variable in the x_t and y_t functions must be t.

For polar graphs the independent variable must be Theta, and for sequence graphs, it must be the special wiggly n.

Once you select the type of graph, the independent variable is entered by pressing the key marked

Dec 19, 2013 | Office Equipment & Supplies

You referenced a variable that is not currently defined. For example, you referenced a stat variable when there is no current calculation because a list has been edited, or you referenced a variable when the variable is not valid for the current calculation, such as a after Med-Med.

Jun 06, 2013 | Texas Instruments TI-83 Plus Calculator

At first type next: Home, then 2nd F6: 2 option NewProb.

Then graphing function, for example y=-x^2+28x+6

Then graphing function, for example y=-x^2+28x+6

Sep 01, 2011 | Texas Instruments TI-89 Calculator

If you want to graph the absolute value of a function, feed the function to the absolute value ie graph y= abs(f(x)). The calculator will take care of it. See screen captures where I draw the function y1=x^3-5x^2-3 and y2='x^3-5x^2-3'. On the first graph the function is represented and on the second the function and its absolute value.

The calculator knows how to calculate the absolute value of an expression. The name of the command is abs(

The calculator knows how to calculate the absolute value of an expression. The name of the command is abs(

May 08, 2011 | Texas Instruments TI-89 Calculator

function or run a user-defined program that references a local variable that is not

initialized (assigned a value). You have to type

May 02, 2011 | Texas Instruments TI-89 Calculator

Hello,

The default variable for the integral is x. If you have a product between two litteral symbols the * must be inserted. Arguments of functions must be enclosed between parentheses. To avoid errors clear the variables before the integration: [2nd][F6:Clean Up] [2:NewProb][ENTER]ENTER]

Hope it helps.

The default variable for the integral is x. If you have a product between two litteral symbols the * must be inserted. Arguments of functions must be enclosed between parentheses. To avoid errors clear the variables before the integration: [2nd][F6:Clean Up] [2:NewProb][ENTER]ENTER]

Hope it helps.

Sep 30, 2009 | Texas Instruments TI-89 Calculator

That means one (or more) of the variables you have in your function is not defined. Check to make sure you didn't misspell any variable name. Also, check to make sure you didn't run two variable names together. "ab" is the variable ab, not a times b.

Mar 19, 2009 | Texas Instruments TI-84 Plus Calculator

You have to reset

• Press [2nd] [6] (MEM) [F1] [ENTER(RAM)]

• Select 1:ALL RAM

• Press [ENTER]

• Press [ENTER]

NOTE- erased half of my programs(I think only the ones in the main directory)

• Press [2nd] [6] (MEM) [F1] [ENTER(RAM)]

• Select 1:ALL RAM

• Press [ENTER]

• Press [ENTER]

NOTE- erased half of my programs(I think only the ones in the main directory)

May 03, 2008 | Texas Instruments TI-89 Calculator

go to home and type Define x

Apr 13, 2008 | Texas Instruments TI-89 Calculator

goto home and type Define x

Feb 22, 2007 | Texas Instruments TI-89 Calculator

May 21, 2014 | Texas Instruments TI-89 Calculator

Feb 17, 2014 | Texas Instruments TI-89 Calculator

293 people viewed this question

Usually answered in minutes!

×