Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 19:44Z
\frac{4}{2} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
446K
d/dt [t^8] = 8t^7
det| 7 4 ; 4 8 | = 40
144K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
371K
\frac{4}{6} \sum_{i=1}^{n} i^{2}
\frac{8}{6} \sum_{i=1}^{n} i^{2}
259K
∑_{k=1}^{n} k = n(n+1)/2
224K
det| 5 2 ; 3 6 | = 24
234K