Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 17:52Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
iħ ∂ψ/∂t = Ĥψ
∑_{k=1}^{n} k = n(n+1)/2
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∑_{k=1}^{n} k = n(n+1)/2
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3r² + 6r + 7 = 0
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
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E = mc²
det| 11 9 ; 0 12 | = 132
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∫₀^∞ e^(-n²) dn = √π / 2
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