POLAR COORDINATES Graphing (Page 8 of 12)

To find the rectangular coordinates of any point on the graph, use the CALC value command. Just enter the desired value of θ, but make sure it is within the current window settings (that is, θ is between θmin and θmax).

Let's find the rectangular coordinates of the point for which θ = 3π/2.

 2nd CALC key. 1: menu selection. 3 2nd Pi key. Divide key. 2 ENTER key. Calculator screen image.

From the display, we can see that the point has rectangular coordinates (0, 2).
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