Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:06Z
4y² + 8y + 1 = 0
\lim_{β\to 0} \frac{\sin β}{β} = 1
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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2H₂ + O₂ → 2H₂O
det| 1 1 ; 2 2 | = 0
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\frac{10}{7} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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iħ ∂ψ/∂t = Ĥψ
det| 8 7 ; 5 9 | = 37
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CaCO₃ → CaO + CO₂
det| 3 9 ; 1 4 | = 3
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
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\lim_{t\to 0} \frac{\sin t}{t} = 1
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∑_{k=1}^{n} k = n(n+1)/2
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