Polar Bear Math

#### Polar Plotting with TI-83/84 Calculators

Set your calculator in "degree" mode and "polar" graphing mode (MODE key)

Set the graph window parameters (WINDOW key)

Graph a few functions, for example

 Y=

Try some other functions, for example $$r=sin(N\theta)+C$$ where $$N$$ is an integer and $$C$$ is any number.

Add a cosine into the mix, try $$r=sin(2\theta)+cos(3\theta)+1.5$$. (This is a bit too big to show with the window settings from above; use ZOOM FIT, ZOOM SQUARE to see it.)

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Where Are Polar Coordinates and Graphs Used in the Real World?
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