Hello, reiward!

How do i sketch this polar equation? .

You should be familiar with the curve called thelimacon.

. . This one has a "loop".

Calculate a few ponts:

. .

The graph looks like this:Code:: * * o 1 * : * * : * * : * : * * * * : * - - o - - o - - * - - - - 3 * -1 * * : * : * * : * * : * * : * * * o 1 :