Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:03Z
4y² + 8y + 1 = 0
2H₂ + O₂ → 2H₂O
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
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C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
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\frac{10}{7} \sum_{i=1}^{n} i^{2}
det| 1 7 ; 7 2 | = -47
339K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
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det| 9 6 ; 3 10 | = 72
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\frac{5}{3} \sum_{i=1}^{n} i^{2}
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∑_{k=1}^{n} k = n(n+1)/2
387K
det| 4 1 ; 2 5 | = 18
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\lim_{β\to 0} \frac{\sin β}{β} = 1
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\oint_C \vec{F}\cdot d\vec{r} = 0
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