Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:58Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{6}{1} \sum_{i=1}^{n} i^{2}
det| 4 7 ; 2 5 | = 6
289K
∑_{k=1}^{n} k = n(n+1)/2
278K
∂x/∂θ = 8x
det| 5 6 ; 2 6 | = 18
399K
det| 7 4 ; 4 8 | = 40
11K