- Turn calculator ON
- If you do not see icons press the [MENU] key.
- Use the arrow keys to move focus on the [RUN] icon.
- Press [EXE]
- In RUN screen press the [OPTN].
- After you press the down key once you highlight the line "Func Type"
Here is what you see.
The polar graph type is set by pressing F2:r=. In
general r=f(theta). After the F2 key is pressed the Function type changes to r=
Now, if you press the MENU key and use arrows to focus on and select GRAPH, the function entry screen looks as in the picture below (without the 2cos(3theta))
After you enter the function (use the (X, theta, T) key below the [ALPHA] to enter the theta variable) press
EXE to validate.
After
drawing the r1=2cos(3theta) curve I opted to change the function to r1=2cos(5theta)
Press F6:Draw to draw the graph. Here is what you get.
Enjoy.
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