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Help with Ti Inspire Cx calculator. It rounds up the coordinates when graphing

When I graph two graphs and then find the intersects the coordinates of the interescts are always rounded up. like, the xvalue for one of the coordinates was 2.15 but it gave me 2.2 but i needed to see 2.15. how can i get it to leave about 4 numbers behind the decimal?I tried messing with the floats for graph and geometry... doesnt work. I've got a finals pretty soon please help.

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Draw the graphs of the functions you are interested in. While the graphs are displayed Press the Menu key. In the drop down window locate the sub menu Settings (number 8 or 9) depending on your calculator
The following screen is displayed with at the top the setting Float.

Help with Ti Inspire Cx calculator. It rounds up t - 576eff6a-ca6c-4471-b934-fb86513193cf.jpg

Follow the right pointing arrow on the same line as float and select Float 3 or 4 as on the screen capture tHelp with Ti Inspire Cx calculator. It rounds up t - ce766af9-0700-4826-b12a-0c98a9589a60.jpgnet/uploads/images/ce766af9-0700-4826-b12a-0c98a9589a60.jpg" alt="ce766af9-0700-4826-b12a-0c98a9589a60.jpg" class="h_mi" />

Point to the graph of one of the functions select it thenHelp with Ti Inspire Cx calculator. It rounds up t - 979a4029-a5d4-484c-be0e-673f4e970f98.jpgraph then intersection.


You will be asked to select the second function, then the lower bound and upper bound. As you see on the previous screen capture, the coordinates of the intersection point are given with 3 decimal digits.

Posted on Apr 27, 2013

Testimonial: "O sir/miss this doesnt work for my calculator. Perhaps I told you the wrong of the brand or something because in the window drop box there is "settings" or anything like that. I just assumed my calculator was a ti nspire cx because i know for sre that its not a ti nspire cas. Umm but only it is just a ti nspire 2.0 anyways i do have that graph geometry setting on the home page and i did mess with the float there and it didnt work? any other solutions maybe? By the way thank you for helping."

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  • k24674 Apr 28, 2013

    CAS or no CAS should not make a difference. I did the same manipulations on my TI Nspire (OS 3.2.3) with the latest operating system. Since I upgraded my calculators I no longer have OS version 2. I still believe it should work similarly. If not go the general settings and set number display to Float 3 or 4.

  • delleisha Apr 28, 2013

    I did that. I went to the general settings and set the display digits to float 3 and that didnt work neither did float four. I also tried setting the float to 3 or 4 in the graph and geometry settings. by the way i can only do this on the home page though. not like ur calculator that can do it on the actually graphing page. ALSO there more than floats for the display digits options. theres float 1-12 then fix 0-12 in the general settings and same for graph and geometry settings. just in case that helps.

  • k24674 Apr 29, 2013

    You can upgrade the OS to version 3.x.x and you will be able to use the procedure I described above.use



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SOURCE: functions don't work

The presence of the Fat arrows to the left of the Y1, Y2,etc = functions means that the Transfrm application is running. It takes over the graphing from the native OS.
You must uninstall it.

  1. Press [APPS] and scroll up to go to the bottom of the list of Applications.
  2. Highlight [ : Transfm] and press [ENTER]
  3. In the new screen with the heading "Transfm App" press the number that corresponds to uninstalling the Apps [1:Uninstall]
  4. Try to graph two simple functions Y1=X and Y2=2X.
  5. If these functions are graphed correctly you are back in business, if not turn Stats Plots off.
To turn Stat plots Off
Press [2nd][Y=] (Stat Plot)
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SOURCE: Not Graphing

You're probably trying to graph a function that does not involve stat plot features. You can correct this by turning off the stat plot features. Press "2ND" "STAT PLOT" and then select 4:PlotsOff.

If that's not it, post a comment and we'll go from there.

Posted on Apr 08, 2010

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When graphing in documents my TI nspire cas cx is stuck in relation mode instead of function. How do I reset this?

How about starting a new document, or adding a new page, or just turning the machine off without saving?

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Ti-Nspire gives me coordinates in radians when my mode is set to degrees.

That is a round-about way to solve cos(x)=0.543 by graphing. Use the inverse function of the cosine arccos or cos^-1
If cos(x)=0.543 then x=arccos(0.543)
To graph a trigonometric function it is more natural to use the radian as the unit. However in geometry it is more common to use the degree. To solve an equation like x=arccos(0.543) where you want the answer to be degree, change the document settings to make the default angle unit the degree.



Make the graphing angle unit the degree and set that as default by selecting Make Default and press Enter.

Dec 15, 2013 | Texas Instruments TI-Nspire CX Graphing...

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Draw the graphs of the functions you are interested in. While the graphs are displayed Press the Menu key. In the drop down window locate the submenu Settings (number 8 or 9) depending on your calculator
6d8395f7-b10e-4d9e-a7e6-45beadb303a3.jpg76f72147-9dcf-457f-a122-ae70490e2815.jpgThe following screen is displayed with at the top the setting Float.
eb304039-5513-442e-886f-d435de8aa653.jpgFollow the right pointing arrow on the same line as float and select Float 3 or 4 as on the screen capture above.
0c4e79fb-d2eb-4461-821f-87adbd63b387.jpgPoint to the graph of one of the functions select it then press the menu select option Analyze graph then intersection. You will be asked to select the second function, then the lower bound and upper bound. As you see on the previous screen capture, the coordinates of the intersection point are given with 3 decimal digits.

Apr 27, 2013 | Texas Instruments TI-Nspire Graphic...

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Log(x+2)+log(x+3)=7-x How to intersect with TI-84

Press Y=
On the Y1 line enter the expression LOG(X+2)+LOG(X+3) by pressing
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On the Y2 line enter the expression 7-X by pressing
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Press GRAPH to see the graph. To see where they intersect, press 2ND [CALC] 5. See "First curve?" in the lower left. Use up/down-arrow to select one of the two curves and press ENTER. See "Second curve?" in the lower left. Use up/down-arrow to select the other curve and press ENTER. See "Guess?" in the lower left. Press ENTER. The calculator will show the coordinates of the intersection.

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How to set a ti-84 to graph both sides of the equation separately on the same coordinate system.

If I'm understanding you correctly, you want to graph something like


If this is correct, graph 5x+3 in the y1 line and 9 in the y2 line. To find the solution, you will press 2nd, then trace the intersection and hit enter 3 times. This will get the solution you need for the equation.

If this is not what you are wanting to do, you need to be try again and elaborate more.

Jun 28, 2011 | Texas Instruments TI-84 Plus Calculator

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I have a TI-Nspire Graphic Calculator (Not the CAS.) I had a couple of questions about the calculator. First off, how do I limit the domain on a function that I am graphing. For example, I am graphing y=x...

simply divide the function by the domain you wish.

In your example, you wanted to graph y=x for x>=0.
You should graph the function f1=(x)/(x>0)

To find out when y=900, graph the function in f1, and then graph the equation y=900 (which will be a horizontal line) and use the intersect function to find where they cross. The x-coordinate of the intersection is the solution you are seeking.

Jan 25, 2011 | Texas Instruments TI-Nspire Graphic...

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Today i was trying to graph y=2x+23, but when ever i would press graph it would pop up window variables domain. What do i do to fix this?

Your ranges for your window settings are more, or less out of bounds with the equation y=2x+23, that you entered.
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Please help plotting graphs on TI-83 plus

I believe I already showed you with a profusion of details how to graph functions on the calculator. It would very kind of you to refer to the post that answered your question, so as not to make us answer it all over again. Much appreciated.

Read the following to use the intersection function.
  1. You draw two or more graphs.
  2. After the graphs are displayed, press [2nd][TRACE] to access the (CALC)ulate menu.
  3. Select [5:Interesct]
  4. You will be prompted for a first curve: the equation of the curve will be displayed at the top left corner of the screen. If it is one the intersecting curves, press [ENTER]
  5. You will be prompted for the second curve. (You can move from one curve to another by pressing the UpArrow or DownArrow).
  6. After two curves are selected, you will be prompted for a guess for the X-value of an intersection point: you can use the keypad to enter a guess or use the left or right arrow to move the cursor towards a point of your choosing (if there are more than one point).
  7. After a short while the calculator gives you a solution.
  8. If it fails, you must make a better guess.

Here are some screen captures





May 12, 2010 | Texas Instruments TI-83 Plus Calculator

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How do i solve this problem 3x+25=5x using my TI 84 plus

i think there are programs but with something as simple as that you should be able to work it out manually....
x=25/2 or 12.5

Jul 05, 2009 | Texas Instruments TI-84 Plus Calculator

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Ti 84 plus problem

The calculator only displays from -10 to 10 on the x and y axes, and both of your lines are outside of that range. However, it is easy to change that.

1. Hit the gray "WINDOW" button that is directly under the screen
2. Change "Xmax" to 150
3. Change "Ymax" to 200

Remember to change both of those values back to 10 when you are done with this problem!

Here's how to graph it:
1. Hit the "Y=" button
2. Enter your first equation after Y1, and your second equation after Y2
3. Look over both the equations to make sure you typed them correctly
4. Hit the "GRAPH" button
5. If you don't see the intersection you will need to adjust Xmax and Ymax again
6. Hit Hit "2ND" and the "TRACE" to bring up the "CALC" menu
7. Scroll down to "intersect" and hit enter
8. Hit enter 3 times (You use the first and second curve options when you have more than 2 lines)
9. It should display the coordinates at the bottom
10. I got (76, 142.1) for the intersection

Thanks for asking this question! I used to do this a much harder way, but while I was calculating the answer to your question I hit a wrong button and accidentally found this method!

Jun 30, 2009 | Texas Instruments TI-84 Plus Calculator

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