sigma video tutorials for mobile phones

Video Tutorials for Mobile Phones

Getting the files is easy. Just download them to your desktop, then upload them to your phone in the usual way.

The two sets of videos available for download in this format are Complex Numbers and Matrices.

Unit 1: Motivating the study of complex numbers
This mobile phone download introduces complex numbers by explaining how it is useful to be able to formally write down the square root of a negative number.
Unit 2: Imaginary numbers and quadratic equations
This mobile phone video shows how the imaginary number i can be used in the solution of some quadratic equations.
Unit 3: What is a complex number
This mobile phone video explains what is meant by a complex number, and how to find its real and imaginary parts.
Unit 4: Adding and Subtracting Complex Numbers
This mobile phone video explains how complex numbers can be added or subtracted.
Unit 5: Multiplying complex numbers
This mobile phone video explains how complex numbers can be multiplied together.
Unit 6: The complex congugate
This mobile phone video explains what is meant by the complex conjugate of a complex number.
Unit 7: Division of complex numbers
This mobile phone video explains how to divide complex numbers.
Unit 8: The Argand Diagram
This mobile phone video explains how complex numbers can be represented pictorially using an Argand Diagram.
Unit 9: The modulus and argument of a complex number
This mobile phone video explains how to calculate the modulus and argument of a complex number.

The Matrices videos will be available for download shortly.

Quick Links

Click here to view the associated Complex Number PDFs.

Click here to view the associated Matrices PDFs.