http://www.tech.plym.ac.uk/maths/resources/PDFLaTeX/vectors.pdf [www.tech.plym.ac.uk]

http://www.mymaths.co.uk/ [www.mymaths.co.uk]

http://coolmath.com/ [coolmath.com]

http://www.wildbunny.co.uk/blog/vector-maths-a-primer-for-games-programmers/ [www.wildbunny.co.uk]

http://www.bbc.co.uk/schools/gcsebitesize/maths/geometry/vectorshirev1.shtml [www.bbc.co.uk]

http://www.khanacademy.org/ [www.khanacademy.org]

http://phet.colorado.edu/en/simulation/vector-addition

http://www.cut-the-knot.org/Games/Vectors.shtml

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