Complex number

Description
Complex number is defined and explained by example. Complex conjugate is defined. How can a real number is obtained by multiplying a complex number and its conjugate is shown. Polar representation of complex number is stated, sometimes it is known as Euler's equation. Complex exponential is discussed in this video lecture.
Prof. Arthur Mattuck, Maths, 18.03.Differential Equations, Spring 2010: 6: Complex Numbers and Complex Exponentials: Massachusetts Institute of Technology: MIT Open Course Ware),http://ocw.mit.edu (Accessed November 2, 2011). License: Creative Commons BY-NC-SA: http://ocw.mit.edu/terms/#cc