Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 19:49Z
\frac{4}{2} \sum_{i=1}^{n} i^{2}
d/dt [t^8] = 8t^7
∑_{k=1}^{n} k = n(n+1)/2
371K
\frac{4}{6} \sum_{i=1}^{n} i^{2}
AgNO₃ + NaCl → AgCl↓ + NaNO₃
224K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
218K
det| 9 4 ; 1 10 | = 86
354K