Question about Texas Instruments TI-82 Calculator

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TI-82 graphing problem

Hello, I can't see the x-axis or the y-axis when graphing a function. I followed the basic instructions for drawing a circle (found in the user manual) to help reset graphing options, but they still don't appear. Could you please help. THX, --Mona.

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I have to disagree with AndyPlough you go to window-right arrow-and go to AxesOn and press enter.

Posted on Nov 23, 2008

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Try looking at you Window settings they should look like this

Posted on Jan 17, 2008



Posted on Nov 23, 2007

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You must press 2nd then "zoom", then go down to axes, and turn them on. Now your graph will work again.

Posted on Aug 27, 2007

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To graph a circle with radius 4

Press [2nd][PGRM] to open the (DRAW) utility. Scroll down to reach the line 9: Circle( and press ENTER. Complete the command by supplying the coordinates of the circle center and the radius.
Circle(0,0,4) draws a circle with center at the origin (0,0) and radius 4.
By the way the equation of a circle is not a function. You have to cut it into the upper brach and the lower part to graph it.
y=+SQRT(16-x^2) and y=-SQRT(16-x^2)

Sep 01, 2011 | Texas Instruments TI-84 Plus Silver...

1 Answer

When I try to graph something, I see the graph, but I no longer see the x and y axis. This happened on my TI-89 titanium

Enter a function in Y= Editor, then draw its graph.


While the graph is still displayed Press F1


Press 9:Format to open the FORMAT screen

Toggle the Axes ON

Aug 26, 2011 | Texas Instruments TI-89 Calculator

2 Answers

How do I graph equations like x^2 + y^2 = 9 on my TI84 Plus silver calculator?

This is the equation of a circle centered on (0,0) and with radius r=3. You can draw it as a conic section.For that you will need the conics application. Look for it on
You can also draw it as two branches: y1=+ square root (9-x^2) and y2=-square root(9-x^2). The two parts may not overlap at the points on the the x-axis, but if you are willing to accept the calculator limitations you will have your graph.

May 21, 2011 | Texas Instruments TI-84 Plus Silver...

1 Answer

I'm trying to graph a circle on my TI-83 Plus. 1.) I don't know the way to trick the calculator into graphing the circle 2.) When I try to graph I get 'ERR:WINDOW RANGE' I don't want to use draw and i...

Here is the link to post where I show several ways to draw a circle. If you do not have the conics applications download and instakk it on the calculator.
You can also use the cabri Jr application downloadable from This application is dedicated to geometry.

Apr 10, 2010 | Texas Instruments TI-83 Plus Calculator

1 Answer

Y+5-10=0 how do I sove that when I push MATH 0

you have to solve for y. and y = 5. so the graph will look like a horizontal like on the y-axis going through the number 5, parallel to the x-axis.

Jan 29, 2010 | Texas Instruments TI-82 Calculator

1 Answer

Whenever i try to link my calculator with other ones it always says error in xmit. no matter what i do

Read the following answer from the TI Knowledge Base.
Hope it helps.

How can I troubleshoot an Error in Xmit error message when transferring data between two graphing calculators?

The Error in Xmit error message is returned when a connection cannot be established between two calculators when attempting to transfer data. There are several factors that can contribute to this error message.
• The calculators being connected are not compatible for data transfer.
• The data cable is not firmly connected to both units.
• The receiving calculator is not in receive mode.
• The I/O port on one of the graphing calculators is damaged.
The procedure for connecting two graphing calculators is as follows:

• Connect the data cable to the I/O port of each unit. The cable will fit tightly in the I/O port and snap into place. If silver from the cable is visible, the cable is not properly connected.
• Access the Link menu on each unit
• Place the receiving graphing calculator on "Receive"
• Place the sending unit on "Transmit" or "Send" from the Link menu.

Once the data has been selected, the transfer will commence accordingly.

The data transfer protocols for graphing calculator is as follows:

• TI-73 - Link allows data sharing with another TI-73, TI-82, TI-83, and TI-83 Plus.
• TI-82 - Link allows data sharing with another TI-82.
• TI-83 - Link allows data sharing with the TI-82, TI-83 family calculator, and TI-84 Plus family calculator.
• TI-83 Plus/TI-84 Plus family- Link allows data sharing with another TI-82, TI-83 family calculator, and TI-84 Plus family calculator.
• TI-85 - Link allows data sharing with another TI-85(To a TI-86. Not From a TI-86).
• TI-86 - Link allows data sharing with another TI-86 and from a TI-85 to a TI-86.
• TI-89 family- Link allows data sharing with another TI-89 family calculator and from a TI-92 family calculator.
• TI-92 family- Link allows data sharing with another TI-92 family calculator and from a TI-89 family calculator.
• Voyage™ 200 - Link allows data sharing with another Voyage 200 and TI-92 family calculator.

If the cable does not fit properly into the I/O port, or if the I/O port appears to be damaged (broken or separated plastic, obstruction inside the port), call 1-800-TI-CARES (1-800-842-2737) M-TH 8:00 AM - 7:00 PM FRI 10:00 AM - 7:00 PM Central Standard Time to speak to a representative or sending an email to

Oct 22, 2009 | Texas Instruments TI-83 Plus Calculator

3 Answers

How to set the window?

Press [Window]
Set the values of Xmin, Xmax, Ymin, Ymax.
If the x values that the function takes are all positive, you may set Xmin =0. If the values of the function are all positive, you can set Ymin=0.
If you are drawing a sine or a cosine function, you know that the function values are between -1 and +1, so you cant restict Ymin an Ymax to say -1.2 and 1.2. Similarly if you draw trigonometric function no need to have a range of X values between -10 and 10: the function being periodic you can restrict values (in radians to -pi to +pi, ) or to -90 to +90 degrees.
You set the limits of the window by making use of your knowledge of the functions you are drawing.

Hope it helps.

Sep 19, 2009 | Texas Instruments TI-83 Plus Calculator

1 Answer

How can I get my calculator to highlight more than one function, to graph a circle for example?


Suppose you want to draw the circle the equation of which is X^2+Y^2=4, a circle centered at the origin with radius 2.
When you isolate Y^2 and then extarct the squre root you obtain two solutions, call them Y1 and Y2
Y1=SQRT(4-X^2), Y2= -SQRT(4-X^2)
You press[Y=] and type in the right hand side of the equations above, one in Y1= and the other in Y2. Press [GRAPH].

Ih a graphic does not appear within the scree window adjust the window parameters ( [WINDOW]) or Press [ZOOM] and select ZoomIn, ZoomOut, ZoomSTD, etc.

Explore the program Draw accessible by pressing [2nd][DRAW].

Hope it helps

Sep 04, 2009 | Texas Instruments TI-84 Plus Calculator

1 Answer

My TI-82 wontdraw graphs!

one of your stat plots is on. either go to 2nd y= and turn off yout stat plots. Or reset your caculator. 2nd then + then 7 then 1 then 2

Jan 16, 2008 | Texas Instruments TI-82 Calculator

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