
2.
Dene the expression 5πcos(θ/2)cos(θ)
2
.
5 2
The key enters whatever variable is relevant to the current app. In this app, it enters a θ.
3. If you wish, choose a color for the plot other than its default. You do this by selecting the colored square
to the left of the function set, tapping , and selecting a color from the color-picker.
Adding denitions, modifying denitions, and evaluating dependent denitions are common operations in
Symbolic view.
Setting the angle measure
To set the angle measure to radians:
1.
Press .
2. Select Angle Measure, and then select Radians.
These are common operations in Symbolic Setup view.
310 Chapter 17 Polar app
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