2.7 Polar and Euler form of a Complex Number

. Polar and Euler form of a Complex Number When performing addition and subtraction of complex numbers, we use rectangular form. This is because we just add real parts and add imaginary parts; or subtract real parts, and subtract imaginary parts. When performing multiplication or finding powers or roots of complex numbers, use an alternate form namely, polar form , because it is easier to compute in polar form than in rectangular form.