Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:05Z
4y² + 8y + 1 = 0
∑_{k=1}^{n} k = n(n+1)/2
46K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
468K
2H₂ + O₂ → 2H₂O
det| 7 7 ; 5 8 | = 21
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
339K
iħ ∂ψ/∂t = Ĥψ
det| 7 3 ; 6 8 | = 38
121K
CaCO₃ → CaO + CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
316K
det| 9 8 ; 1 10 | = 82
CH₄ + 2O₂ → CO₂ + 2H₂O
97K
det| 4 7 ; 6 5 | = -22
338K
\oint_C \vec{F}\cdot d\vec{r} = 0
256K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
348K
\oint_C \vec{F}\cdot d\vec{r} = 0
396K