Question about Texas Instruments TI-84 Plus Silver Edition Graphic Calculator

3 Answers

Graphing more than one in y editor.

I can only graph one thing. I also having a problem shading for inequalities

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  • Wqian94 Oct 23, 2008

    Basically, the "arrow" key to the left of Y1 becomes >|, and then the = sign is highlighted for the equation that is being graphed. I have heard that there is an app for this, but which one...?

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The Trasnfrm application is usually the culprit. Go to APPS and choose the Transfrm app, then in the menu that comes up, choose Uninstall.

Posted on Oct 24, 2008

I was having the same problem today and used this and is worked too! thanks!!

Posted on Nov 06, 2008

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This fixed the problem!!!! Thanks

Posted on Nov 04, 2008

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2 Answers

How do I graph x<-3 on the calculator?


First you must use a graphing calculator.
Most graphing calculators graph functions, i.e. relations of the form y=f(x).
Some graphing calculators are able to graph equations (not necessarily functions). On one of these calculators your draw the vertical line x=-3, then you shade to the left of the point x=-3. That gives you the real line from infinity up to but not including x=-3.
Generally, people do not need calculators to find the solutions to inequalities in just one variable.

e7963f8a-13fa-417a-857b-ca91636bf86b.jpg

Jan 06, 2016 | Calculators

1 Answer

How to turn off shading when graphing inequalities.


The solution set of a linear inequality in two variables (x,y) is one half of the Cartesian plane. The half-plane may or may not contain the boundary line defined by the = sign. Thus it is expected that the calculator shades the relevant half-plane. If you are dealing with nonlinear inequalities the calculator shades inside or outside the curve.
When drawing multiple inequalities the Casio offers you the possibility to shade the regions where ALL conditions (ALL inequalities) are simultaneously satisfied. The other option is OR.
If you are not interested in the shading do not draw inequalities, draw equations (with =).

Aug 23, 2013 | Casio FX9750GII Graphic Calculator

2 Answers

How do i use the "shades" or "Po-I-Trace" menus on the TI-84?


Press APPS. Scroll up or down to reach Inequalz and press ENTER. The inequalz application will know control function graphing. Open the Y= editor to enter at least two inequalities . Use the tabs at the bottom to type in the relational operators. You will have to press [ALPHA] followed by [F1], or [F2], etc

7_30_2011_12_32_29_pm.jpg
Press the GRAPH function key (F5) to draw the graphs. You get the two regions superposed (original shading).

7_30_2011_12_35_32_pm.jpg
Press [ALPHA][F1 or F2] to activate the [SHADES] tab. This open up the following screen.

7_30_2011_12_38_54_pm.jpg
On this screen you can choose the type of shading 1: Intersection of the two regions ( the part of the plane that satisfies both inequalities, 2 the union of the two regions or 3 the original shading (as compared to choice 2). Selecting option 1:intersection gives you the following screen.

7_30_2011_12_49_11_pm.jpg
If you press the [ALPHA][F5] keys you have the HELP ? screen below.

7_30_2011_12_50_23_pm.jpg
If you press the [ALPHA] [F3] keys you get a Point of Interest (You should consult the manual for the Inequalz application for more details.
7_30_2011_12_52_14_pm.jpg
By pressing the TRACE button (not ALPHA F4) and the left or right arrows you you can follow the graph of one of the functions. You jump to the other functions by pressing the Up or Down arrows.

7_30_2011_12_57_36_pm.jpg
To get the manual for Inequalz go to the education.ti.com and download it.

Jul 29, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

I want to graph an inequality but when i got to apps all it shows up is only finance


You don't need an app. Just press the Y= button and enter the inequality as if you're entering another function to be graphed. Then press left-arrow repeatedly to move to the diagonal line at the left end of the display. Press ENTER repeatedly to cycle through the different graph styles. If the inequality is of the form "y less than" or "y less than or equal to", select the shaded triangle below the line. If the inequality is of the form "y greater than" or "y greater than or equal to", select the shaded triangle above the line.

Jun 10, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

In front of the y= , there is a >II . How can


It seems that you are drawing Inequality Graphs.

A. If you are not drawing inequalities, kick the Ineqal application out of memory.

B. If you still want inequality drawing, but just for once want a function graph,
  1. you can open the Y= editor. The operation sign (=, less than, less than or equal to,...) will be highlighted in your equation (inequality).
  2. Press the [ALPHA] key then press the [Y=] key to select the tab corresponding to the = sign.

C. To kick The INEQUAL application from memory,
  • Press the [APPS] button.
  • In the the new screen display (INEQUAL RUNNING), select [2:Quit Inequal]
  • Return to the [Y=] editor screen to make sure that you have function graphs

Feb 17, 2011 | Texas Instruments TI-84 Plus Calculator

1 Answer

How do you graph inequalitys on the graphing calculator


Press the MENU key
Select 5:Graph and press EXE
In the Y= editor window, press F3:TYPE
Press F6 to access other graph types.
Select the inequality symbol you want and enter the right member of the inequality, then press EXE.
You are returned to the Y= screen.
When done entering your expressions to graph, press F6 Draw.
moz-screenshot.png

Jan 22, 2011 | Casio FX9750GII Graphic Calculator

1 Answer

Only graph one function at a time


A) Before drawing function Y1=f(X), R1=F(Theta), (X1=f(T), Y1=f(T))
you should turn the statistical plots OFF.
To turn statistical plots off
  1. Press [2nd][Y=] to open the (STAT PLOT) menu.
  2. Select [4:PlotsOff] and
  3. Press [ENTER].
  4. Calculator displays Done
  5. Restart your graphs.
  6. Adjust the window dimensions if necessary or use the ZOOM function to have all graphs displayed.
B) If you cannot draw more than one function

Usually as soon as you start entering an expression in the Y= editor screen, the = sign is highlighted to ensure the drawing of a function. However, if you have previously used the Transfm application to draw dynamic graphs, it takes over the graphing functionalities from the native OS and you can only draw a single graph.
The reason is that dynamic graphing needs one or two parameters that can be changed during the graphing process and the graph redrawn with a new value of a parameter, and you end up with a family of curves differing one from the other by the values of one parameters. But since the calculator has space for 10 graphs at most, only one function can be highlighted.

To make a long story short, you must uninstall the Transfrm application from memory. The procedure will not erase it, just kick it out of memory.
  1. Press the [Apps] key.
  2. Scroll down or up to reach the Transfmapplication.
  3. Select it and press [ENTER].
  4. If that application was running you will see a new screen that tells you some thing like
    • Transfrm App
    • 1:Uninstall
    • 2:Continue

    Press1:Uninstall.
    Graphing functionalities will revert to the native OS

Another potential culprit is the Inequalz App. You recognize that Inequalz is runnibg if the [ Y=] editor screen shows tabs at the bottom
666ade0.jpg

To uninstall it, do as for the Transfm and select the option that will unload it from memory.
  1. Press [Apps]
  2. Select [ : Inequalz]
  3. Screen displays Inequal RUNNING
  • [1:Continue]
  • [2:Quit Inequal]
  • 3:About]
Press [2:Quit Inequal]

Mar 18, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

The calculator doesnt graph two equation on the graph


A) Before drawing function Y1=f(X), R1=F(Theta), (X1=f(T), Y1=f(T))
you should turn the statistical plots OFF.
To turn statistical plots off
  1. Press [2nd][Y=] to open the (STAT PLOT) menu.
  2. Select [4:PlotsOff] and
  3. Press [ENTER].
  4. Calculator displays Done
  5. Restart your graphs.
  6. Adjust the window dimensions if necessary or use the ZOOM function to have all graphs displayed.
B) If you cannot draw more than one function

Usually as soon as you start entering an expression in the Y= editor screen, the = sign is highlighted to ensure the drawing of a function. However, if you have previously used the Transfm application to draw dynamic graphs, it takes over the graphing functionalities from the native OS and you can only draw a single graph.
The reason is that dynamic graphing needs one or two parameters that can be changed during the graphing process and the graph redrawn with a new value of a parameter, and you end up with a family of curves differing one from the other by the values of one parameters. But since the calculator has space for 10 graphs at most, only one function can be highlighted.

To make a long story short, you must Uninstall the Transfrm application from memory. The procedure will not erase it, just kick it out of memory.
  1. Press the [Apps] key.
  2. Scroll down or up to reach the Transfmapplication.
  3. Select it and press [ENTER].
  4. If that application was running you will see a new screen that tells you some thing like
    • Transfrm App
    • 1:Uninstall
    • 2:Continue

    Press1:Uninstall.
    Graphing functionalities will revert to the native OS

Another potential culprit is the Inequalz App. You recognize that Inequalz is runnibg if the [ Y=] editor screen shows tabs at the bottom
666ade0.jpg

To uninstall it, do as for the Transfm and select the option that will unload it from memory.
  1. Press [Apps]
  2. Select [ : Inequalz]
  3. Screen displays INEQUAL RUNNING
  • [1:Continue]
  • [2:Quit Inequal]
  • 3:About]
Press [2:Quit Inequal]

Mar 17, 2010 | Texas Instruments TI-84 Plus Silver...

1 Answer

I cant graph more than one equation at a time, it only allows me to graph one Y value at a time.


A) Before drawing function Y1=f(X), R1=F(Theta), (X1=f(T0, Y1=f(T))
you should turn the statistical plots OFF.
To turn statistical plots off
  1. Press [2nd][Y=] to open the (STAT PLOT) menu.
  2. Select [4:PlotsOff] and
  3. Press [ENTER].
  4. Calculator displays Done
  5. Restart your graphs.
  6. Adjust the window dimensions if necessary or use the ZOOM function to have all graphs displayed.

B) If you cannot draw more than one function

Usually as soon as you start entering an expression in the Y= editor screen, the = sign is highlighted to ensure the drawing of a function. However, if you have previously used the Transfm application to draw dynamic graphs, it takes over the graphing functionalities from the native OS and you can only draw a single graph.
The reason is that dynamic graphing needs one or two parameters that can be changed during the graphing process and the graph redrawn with a new value of a parameter, and you end up with a family of curves differing one from the other by the values of one parameters. But since the calculator has space for 10 graphs at most, only one function can be highlighted.

To make a long story short, you must Uninstall the Transfrm application from memory. The procedure will not erase it, just kick it out of memory.

  1. Press the [Apps] key.
  2. Scroll down or up to reach the Transfmapplication.
  3. Select it and press [ENTER].
  4. If that application was running you will see a new screen that tells you some thing like
    • Transfrm App
    • 1:Uninstall
    • 2:Continue

    Press1:Uninstall.
    Graphing functionalities will revert to the native OS

Another potential culprit is the Inequalz App. You recognoze that Inequalz is runnibg if the [ Y=] editor screen shows tabs at the bottom
666ade0.jpg

To uninstall it, do as for the Transfm and select the option that will unload it from memory.
  1. Press [Apps]
  2. Select [ : Inequalz]
  3. Screen displays INEQUAL RUNNING
  • [1:Continue]
  • [2:Quit Inequal]
  • 3:About]
Press [2:Quit Inequal]

Feb 17, 2010 | Texas Instruments TI-84 Plus Calculator

1 Answer

Changing Y= to Y greater than


Do you want to change from graphing functions to inequalities or the opposite? A complete sentence would help.
I am going to assume that you want to graph y=f(x) functions, but when you opened the Y= editor, you found unusual symbols.
If the is the case, then you must have run the Inequalz Application. It stays in memory and takes over the graphing from the native OS. Inequalz must be unloaded from memory to return control to the native OS.
Here is how to do it.

  1. Press the [APPS] key.
  2. In the list of Apps find Inequalz.
  3. Type the number in the list that corresponds to Inequalz and
  4. press ENTER
  5. The new screen displays INEQUAL RUNNING and 3 choices
  • 1:Continue
  • 2:Quit Inequal
  • About
Press 2:Quit Inequal to unloade the App from memory. Control will revert to the native OS, and you will be able to draw Y= graphs.

Jan 22, 2010 | Texas Instruments TI-84 Plus Silver...

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