Free Programming Tutorials

I have nearly forgotten all I learned in school about vectors and matrices, but with a new interest
in playing with 3D animation, I am relearning it. Lighting, movement, transformations, all involvelinear algebra, the backbone of 3D graphic programming. Actually, you use linear equations to solve businessproblems too. Even theBabylonians used linear equations. Matrices are basically tables of homogenous data - like a spreadsheetof numbers. Spreadsheets are everywhere in busin 
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