I wont let me graph more than function at a time. what should i do?

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.

A linear function in standard form is of the form Ax+By+C=0, where A is a positive integer, B and C are integers (positive or negative).
The problem is that calculators graph a function given in functional form y= ax+b.Thus to graph a function in standard form by means of a graphing utility you must isolate the y variable. The interesting thing about the Prizm (Casio graphing calculator) is that you select which variable to isolate y (usually) or x if you so choose. To choose to graph the function x=Dy+E you must select the function type as X=.

Hello,

First you must configure your calculator to perform 3D graphics
Press MODE
1.The first line shown is Graph. Unfold the hidden menu list with the right arrow and choose Graph 5:3D
2. Press ENTER to validate.

Now you must define the surface you want to draw
1. Press the [diamond] key then [Y=] to get a list of function names, the first of which is z1
2. Enter the following function (or your own) z1=(x^3*y-y^3*x)/390
( x cubed times y -y cubed times x) divided by 390.
3 Press ENTER.

Graph the function
Press the [diamond] key then [GRAPH]

The graphing screen displays progress in %. When it is finished you will see a weird sombrero.

Hope it helps

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

If this doesn't do it, could you reply to this post and give the function you're trying to graph?

Hi Lexy,
Chances are, your calculator has a program called "Transfrm" on it that is preventing the calculator from graphing more than one function at a time. Luckily this is easily remedied.

1) Turn calculator on and press the "APPS" key.
2) Scroll down (towards the bottom of the list) and find the "Transfrm" program.
3) With the program highlighted, press the "Enter" key.
4) Highlight the "Uninstall" option and press "Enter".

Once the program is uninstalled, the graphing function of the calculator should be working correctly, allowing you to graph more than one function at a time.

Hope this helps :-)

Some time or othefr you played with the Transfrm Application. It remains in memory and takes over the graphing capabilities of the native OS. You must kick it out of memory.

1. Press [APPS]
2. Use Up or Down arrows (Up is faster) to get to the bottom of the APPS list.
3. Locate [:Transfrm], highlight it and press [ENTER]
4. In subsequent screen, select the [UNINSTALL] option.
5. Go back to the [Y=] screen and enter or edit your functions.
6. Press [GRAPH] when finished entering the functions.

What are you trying to do? You drew a graph, then you cleared the function graphed and went to the table to see if the X values have disappeared and they did not.Right?

By pressing the [SHIFT][(TABLE) key you were in fact commanding the calculator to generate a table for a function but you did not supply (nothing in Y= editor), and the calculator faithfully obeyed you. It looked at the Xmin of the window, looked at the Xscl factor and generated a blank table that contains all the X-Coordinates (where your function or table would have been calculated had you entered a valid expression in the Y= editor). That is how it works.

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


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]

Hello,

First you must configure your calculator to perform 3D graphics
Press MODE
1.The first line shown is Graph. Unfold the hidden menu list with the right arrow and choose Graph 5:3D
2. Press ENTER to validate.

Now you must define the surface you want to draw
1. Press the [diamond] key then [Y=] to get a list of function names, the first of wich is z1
2. Enter the following function (or your own) z1=(x^3*y-y^3*x)/390
( x cubed times y -y cubed times x) divided by 390.
3 Press ENTER.

Graph the function
Press the [diamond] key then [GRAPH]

The graphing screen displays progess in %. When it is finished you will see a weird sombrero.

Hope it helps

Hello,
Here is one particulat gase where two graphs are executed simultaneously, yet you see one, but bo the other. When graphs are being executed the one for tan(x) is displayed as a bubble that outlines the variation of the tangente. But at the end, it evaporates, leaving only the sine function.

Here is the result.

Hope it helps.