These are the 6 most recently added notes.
- Mixed numbers and improper fractionsHow to convert to or from mixed numbers and improper fractions.
- Part 5: Appendix to notes on complex numbersProofs of two important calculations with complex numbers written in polar co-ordinates. Links to interesting lessons about complex numbers are added in the second part of this page.
- Part 4: Powers and roots of complex numbersBased on writing complext numbers using polar co-ordinates (see Part 3 of these notes) the powers and roots of complex numbers can be calculated relatively easily. IMPORTANT: If you are not familiar with trigonometry do not proceed further yet. These notes refer to proofs which can be found in part 5 of these notes.
- Part 3: Graphical representation of complex numbersAn alternative way of writing complex numbers. This way is based on graphically representing the two parts of a complex number on a co-ordinate plane. IMPORTANT: If you are not familiar with trigonometry do not proceed further yet. These notes refer to proofs which can be found in part 5 of these notes.
- Part 2: Basic calculations with complex numbersHow to write complex numbers. How to do the basic types of calculations with complex numbers. i.e. addition, subtraction, multiplication and division.
- Part 1: The background of complex numbersThe origins of complex numbers and the unfortunately name “imaginary” numbers.