Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:40Z
∑_{k=1}^{n} k = n(n+1)/2
det| 3 1 ; 7 4 | = 5
468K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
∂x/∂θ = 8x
∑_{k=1}^{n} k = n(n+1)/2
177K
det| 7 4 ; 4 8 | = 40
121K
∑_{k=1}^{n} k = n(n+1)/2
399K