Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:10Z
4y² + 8y + 1 = 0
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
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H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
468K
2H₂ + O₂ → 2H₂O
Fe₂O₃ + 3CO → 2Fe + 3CO₂
289K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
\lim_{z\to 0} \frac{\sin z}{z} = 1
177K
\oint_C \vec{F}\cdot d\vec{r} = 0
358K
∑_{k=1}^{n} k = n(n+1)/2
121K
\oint_C \vec{F}\cdot d\vec{r} = 0
399K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
316K
∑_{k=1}^{n} k = n(n+1)/2
387K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
67K
\lim_{α\to 0} \frac{\sin α}{α} = 1
276K