Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:13Z
4y² + 8y + 1 = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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∑_{k=1}^{n} k = n(n+1)/2
468K
2H₂ + O₂ → 2H₂O
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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det| 1 7 ; 7 2 | = -47
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\frac{10}{7} \sum_{i=1}^{n} i^{2}
iħ ∂ψ/∂t = Ĥψ
det| 9 2 ; 7 10 | = 76
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CaCO₃ → CaO + CO₂
det| 6 7 ; 6 7 | = 0
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det| 9 8 ; 1 10 | = 82
\lim_{z\to 0} \frac{\sin z}{z} = 1
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det| 4 7 ; 0 5 | = 20
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∂ω/∂t = 2ω
\frac{9}{3} \sum_{i=1}^{n} i^{2}
67K