## Posted tagged ‘Matrices’

### You can’t dodge this…

February 13, 2010

Matrices are a core part of Mathematical Methods – there is no way to avoid (dodge) this! You must learn the basics of matrix arithmetic (adding, multiplying by a constant, multiplying by another matrix, finding the determinant and inverse) and matrix algebra (solving for an unknown using inverses, managing transformations through matrices)

So what do you have to do to “Enter the Matrix” and make it your plaything? Well, the basic arithmetic and algebra are fairly simple – but you do need to practice – you familiarity with matrices should be the same as your skill with basic timetables – they are the same. Just like junior mathematics was based of simple timestable and basic algebra, Mathematical methods is based on the skills you develop through familiarity with matrices.  So get cracking!

Here are two powerpoints that will help you get a handle on working with matrices. Watch all of the first one, but the second one goes further than you need to understand (don’t worry about shear transformations, rotations or the applications at the end) (unless you want to…) (in which case, please consider arranging for an appointment with the school nurse).