Question about Casio FX-115ES Scientific Calculator

# How to graph polar equations - Casio FX-115ES Scientific Calculator

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### k24674

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Your calculator does not have graphing capabilities. On a graphing calculator you would first select the graph type 1. function y= f(x), 2. parametric x=x(t), y=y(t), 3.polar r=function(theta).

Posted on Mar 05, 2013

### k24674

Hello,
Turn calculator ON. If you do not see several icons press [MENu].
Use arrow to select the [GRAPH] application and press [EXE].
In the entry screen, the line with Y1= is highlighted. If it is not, use arrow to highlight it.
Press the right arrow, the highlighting disappears leaving you with Y1= and the blinking cursor.
At the position of the cursor enter 5 [X, theta,T] key under the [ALPHA]. On the screen appears 5X, complete you equation +2.
Press [EXE] to store function.
If you want to draw other functions, it is time to do so on that screen.
When done press [F6:Draw}.
If the screen does not show a lot of the function, you can use the arrow keys to pan the graph.
You can also press [SHIFT][V-Window] to set the window limits.

Hope it helps.

Posted on Oct 11, 2009

Testimonial: "Thank you so much!!!"

### k24674

Apparently you cannot. Here are all the possible graph types available and there is no polar graph among them.

Posted on Jul 25, 2010

### k24674

SOURCE: im trying to graph a

To enter powers of trigonometric functions you must enclose the functions in parentheses and then apply the exponent to the whole. For example X1t =(sin T)^3 , Y1t=(cos T)^3 will give you a shape similar to a rhombus with concave sides. The symbol ^syands for the operation of raising to a power. The key is the one with the caret symbol ^ , and it is wedged between the xsqure and EXIT keys (third row of keys).
As regards the cotangent, use the equivalent definition cot(X)=1/tan(X).

Posted on Jul 26, 2011

Testimonial: "thank you for your help sooo much u are a life saver and i was able to figure out how 2 graph the equations on my calculator"

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## Related Questions:

### How do I graph an equation with TI 89?

Just open the Y= equation editor and enter your equation. Use X for T. Make sure the angle unit is in radians.

Nov 10, 2014 | Texas Instruments TI-89 Calculator

### My fx-9750GA PLUS wont graph lines, cicles or paraballas

To draw functions (regular, parametric, polar, sequences) use the application graph: Highloghted on 1st screen capture. The second screen captures shows you the functions y=f(x). enter a legal expression and press F6 Draw. To set TYPE press the key under TYPE.

To draw conics (circles, parabolas, hyperbolas, and ellipses) use the CONiCS applications. (See 3rd screen ). On 4th capture the equation highlight is one for the parabola. y=x^2

Scroll down or up examining the small graphs. They will show you which equation form to choose.
For the circles

Jun 19, 2011 | Casio FX-9750GPlus Calculator

### For graphing how do I enter the information on the screen

Press the Y= button then input the function you are trying to graph. The function should look like y=2x+3 or something. It must be all x's on the other side of the =. It doesn't work if you input 2x+y+3. It must only be x's. If you are trying to graph a different kind of equation then you press the mode button and there is a horizontal list of 4 options that are (in order) FUNC (function) PAR(Parametric) POL (Polar) SEQ (Sequential). Then after you select the one you are trying to graph, you press the Y= button and fill in the information.

Mar 02, 2011 | Texas Instruments TI-83 Plus Calculator

### How do i sketch a graph using a polar equation? i.e. r=a(1+cos "theta") this is for a casio 7400g plus btw

Apparently you cannot. Here are all the possible graph types available and there is no polar graph among them.

Mar 09, 2010 | Casio FX-7400G Plus Calculator

### When i plug in an equation in my calculator, for the y = when i press graph it says there is an error and it won't graph

Before drawing Y= , polar, param ans seq graphs deactivate the statistical plots.
Press [2nd][Y=] (STAT PLOT)
Select [4:PlotsOff]
Press [ENTER]

The statistical plots will be deactived and you will be able to draw regular graphs. Then try Y1=X.

Jan 19, 2010 | Texas Instruments TI-83 Plus Calculator

### Graphing an equation

Press the Y= key to invoke the Y= editor. Enter in your equation.

Press the WINDOW key to set the window parameters.

Press the GRAPH key to have the calculator graph the equation.

For more details and options, see the "Function Graphing" chapter in the Guidebook.

Nov 11, 2009 | Office Equipment & Supplies

### Graphing

i had the same problem .... just go to apps and go all the way down transfrm and click it then click the uninstall button !!!

Apr 01, 2009 | Texas Instruments TI-84 Plus Calculator

### How to graph linear equation in two variables

I am not quite sure what you are asking...

(1) if asking for graphing y= -2/3x+2, then press [diamond] [F1: Y=] type in .2/3x +2, see graph by [diamond][graph]

(2) if asking for graphing y= -2/3x+a, where a=3x, then first archive a=3x in Home screen by [home], type 3x [sto] a, then go back to y= menu, and type -2/3x+a in Y1

(3) if asking for graphing an equation that is dependent on 2 variables at the same time, use x-y-z axis (aka, change mode to graphing 3-D by [mode]graph [5:3D]) then enter desired equation in y= menu using Z function in terms of x and y aka z(x,y)= ...)

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### Graphing

The first solution will allow you to watch your calculator graph two equations simultaneously rather than finishing one before graphing the next; it won't solve the problem of having the calculator unselect one equation when you select a second. To fix that problem, try the following:

In order to select additional graphs, the Transformation Graphing App will need to be uninstalled from the TI-83 Plus Family and TI-84 Plus Family. Uninstalling the App does not erase it from the calculator, it disables it from interfering with the normal graphing modes. Below are the steps to successfully uninstall the App.
• Press [APPS] key
• Select Transfrm from the menu
• Press 1:Uninstall
The illustration and solution are courtesy of Jesse Phillips, who cites this page from the Texas Instruments support site

- doug garfinkel, Children's Day School

Jan 15, 2008 | Texas Instruments TI-84 Plus Silver...

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