Forms of Complex Numbers
Rectangular:
The basic form of a complex number in rectangular form is $ z = a + jb $ where $ j = \sqrt{-1} $. $ i $ is sometimes used instead of $ j $
Polar:
The polar representation of a complex number is given by $ \rho cos(\Theta)+j\rho sin(\Theta) = \rho e^{j\Theta} $. This is also known as Euler's Identity. Using the coefficients of the rectangular form $ \rho = \sqrt{a^2 + b^2} $ and $ \Theta = tan^{-1}(b/a) $.
