$$z = a + ib$$ $$z = r(\cos \theta + i\sin \theta)$$ $$z = re^{i \theta}$$ # Operations ## Multiplying Vectors $$z_{1} \times z_{2} = (r_{1} \times r_{2})(\cos(\theta_{1} + \theta 2) + i \sin (\theta_{1} + \theta_{2}))$$