Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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This is Cool
» The Great Design
#1
2010-10-05 21:21:11
George,Y
Super Member
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The Great Design
Click Here
X'(y-Xβ)=0
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