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Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
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EqWorld - The World of Mathematical Equations
by polyanin
Maths Teaching Resources
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2005-08-26 13:49:37
by ahgua
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