Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:06Z
4y² + 8y + 1 = 0
\frac{7}{8} \sum_{i=1}^{n} i^{2}
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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2H₂ + O₂ → 2H₂O
det| 9 5 ; 2 10 | = 80
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det| 10 5 ; 6 11 | = 80
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\frac{10}{7} \sum_{i=1}^{n} i^{2}
\lim_{θ\to 0} \frac{\sin θ}{θ} = 1
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\frac{7}{7} \sum_{i=1}^{n} i^{2}
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det| 7 8 ; 0 8 | = 56
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∑_{k=1}^{n} k = n(n+1)/2
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\frac{11}{4} \sum_{i=1}^{n} i^{2}
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\lim_{z\to 0} \frac{\sin z}{z} = 1
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\lim_{ψ\to 0} \frac{\sin ψ}{ψ} = 1
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det| 3 7 ; 3 4 | = -9
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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det| 10 1 ; 1 11 | = 109
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∑_{k=1}^{n} k = n(n+1)/2
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
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