Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:29Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
446K
3x² + 3x + 6 = 0
det| 12 2 ; 2 13 | = 152
144K
∇²t = 0
7z² + 2z + 0 = 0
det| 7 2 ; 7 8 | = 42
234K
det| 7 4 ; 4 8 | = 40
70K