How can I apply transformation in polar coordinate?

Answer 1

I use polar coordinates to divide, square, multiply, etc complex numbers.

Its difficult to divide 3 + 5 i by 2 - 3 i, but its pretty easy to divide them if they are in polar coordinates

Ana

Answer 2

Just substitute x=r*cos(t) and y=r*sin(t), where r and t are new variables instead of old x and y.
the guy above does also a good suggestion.