PPT Slide
The Module finishes with a few lectures introducing you to two fascinating and very important types of mathematical objects.
The first are MATRICES. These are simply rows and columns of numbers, but they can be used to describe whole sets of equations, or geometrical transformations like reflections.
The second type of object are COMPLEX NUMBERS. These are the numbers you get if you pretend that it is possible to take the square root of a negative number. They have many, many important uses in mathematics and its applications.