Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:33Z
∑_{k=1}^{n} k = n(n+1)/2
det| 7 4 ; 4 8 | = 40
46K
∑_{k=1}^{n} k = n(n+1)/2
468K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
∂x/∂θ = 8x
3φ² + 4φ + 2 = 0
det| 11 4 ; 5 12 | = 112
121K
5ω² + 6ω + 0 = 0
∑_{k=1}^{n} k = n(n+1)/2
11K