Complex plane graphing program?

[brandy]

anyone no of a free downloadable program the graphs the complex plane. its just I am not to bright but i have to do this assingment on conformal mapping and i can't rearange these equations correctly into rcisthetre form, i like doing things as exact as i can make them and if i did it by hand i would have to do the equation 63 times for 1 question.
so any ideas?

 

[HallsofIvy]

No, I don't know of any program that graphs the complex plane. I also don't see why it should be necessary to "rearrange equations into r cis theta form" in order to graph.

What I would do is look at horizontal and vertical lines, x+ ia for fixed a and a+ ix for fixed x and see what the function changed those into.

 

[brandy]

thiese are the formulas i have:
w=ae^iθ-fb+b^2/(ae^iθ+-fb)
w=ae^iθ+ia sinB-fb+b^2/(ae^iθ+ia sinB-fb)
how would that help me?