Intro to 3D in week 3 built upon the work done in week 2 learning about vectors and taking this into matrices which can be used for transformations in 3D graphics.
The idea of matrcies being used in 3D can be difficult to get your head around, the matrix used (no, not the movie...) to carry out these transformations use 4 dimensions , with the way the human bran works in 3D visulising this is very difficult to do and makes more sense when worked through in paper.
I now have a program which can move a vector using the transormation matrices
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