hello and thank's for the reply
i didn't say that it deosn't work, but i specified that the diagram doesn't match the correct one.
the first figure is the diagram in cartesian form and the second is the polar form.
the correct diagram is far from what i got.
hello everybody
i wrote this matlab code following many references. BUT i can't find the same diagrams.
the formula is included in top comment.
thank's at advance.
