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  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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#1 2010-10-05 21:21:11

George,Y
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The Great Design


X'(y-Xβ)=0
 

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