Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 00:14Z
4y² + 8y + 1 = 0
2H₂ + O₂ → 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
278K
\frac{10}{7} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
177K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
121K
det| 1 1 ; 5 2 | = -3
316K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
11K
det| 4 1 ; 2 5 | = 18
387K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
144K
det| 7 8 ; 0 8 | = 56
97K
\oint_C \vec{F}\cdot d\vec{r} = 0
276K
∑_{k=1}^{n} k = n(n+1)/2
256K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
348K