Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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#1 2006-04-10 16:58:21
- George,Y
- Super Member
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Free Statistics Sofware ^-^
Last edited by George,Y (2006-04-10 16:58:37)
X'(y-Xβ)=0