Can someone explain (in a easy to understand way) or direct me to (online) some of the uses of matrixes. What kind of things are they used for?
I have an idea of how to multiply and add them etc at a basic level but would like to understand real contexts where they are used.
The books I have looked at just mention some contexts by name without highlighting how or why they are used in those situations. For example, I know they are used in 'networks', but what are these in the real world?
I have become really interested in them but want to understand them better, they seem different to most of the maths taught in schools. I wish writers of maths textbooks would write so that it was easier to understand stuff. Also, what on earth is an eigenvalue or eiginvector?
Any help appreciated.