I was reading the wiki article on Legendre Transform. I would be grateful if someone could explain the section at http://en.wikipedia.org/wiki/Legendre_transformation#Examples ie how they arrived at the Legendre transform of the quadratic form. Thanks.
Wikipedia Article -- Legendre Transform
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matrices
calculus-of-variations
vector-analysis
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0Would it help you if we replace "derivative" with "gradient" in the multivariate case? – 2011-08-14