Math Is Fun Forum
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
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X^2 + XY Hyperbolic paraboloid
by Dets65
Help Me !
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2013-05-17 07:13:41
by SteveB
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