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User talk:Fcastillo

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Welcome!

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Hello, and welcome to Wikipedia from SqueakBox! Thank you for your contributions. I hope you like the place and decide to stay. Here are a few good links for newcomers:

I hope you enjoy editing here and becoming a Wikipedian! Please sign your name on talk pages using four tildes (~~~~); this will automatically produce your name and the date. If you need help, check out Wikipedia:Questions, ask me on my talk page, or place {{helpme}} on your talk page and someone will show up shortly to answer your questions. Again, welcome, SqueakBox 20:08, 29 June 2007 (UTC)[reply]

covariance matrix

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Hi. Thanks for your message. The result follows directly from the definition of covariance matrix; the proof is trivial. Hope this helps, Robinh (talk) 19:51, 7 July 2010 (UTC)[reply]