Polar Bear Math

#### Plotting Functions on Polar Graphs

Just like you can plot functions on regular graph paper, you can plot functions on polar graph paper. The function $$y = Ax$$ is a straight line on rectangular graph paper; $$r = A\theta$$ is a spiral on polar graph paper. There is no reason we need to limit $$\theta$$ to the range [0, 360°]; angles go on forever, they just keep going around the polar plot. They can also be negative. Unless otherwise specified, $$0 \le \theta \le 360^\circ$$.

 $$r=\theta/360$$$$0\le\theta\le 1800^\circ$$ $$r=1+sin\:\theta$$ $$r=2.5+(sin\:40\theta)(1-cos\:3\theta)$$

You can get some amazingly pretty results when you experiment with sin and cos functions!

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Polar Plotting with TI-83/84 Calculators
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