Polar Coordinates
Graphs in polar coordinates are given by an equation r=f(θ) as
theta ranges over an interval. This is equivalent to the parametric curve
x=f(θ)*cos(θ),y=f(θ)*sin(θ) as θ
ranges over the same interval. You may create such curves using the
command 'draw', with the optional argument 'coordinates==polar'.
Here are some examples:
You may also define your own functions, when you plan on plotting the same
curve as θ varies over several intervals.
For information on plotting graphs in other coordinate systems see the
pages for the CoordinateSystems
domain.
