Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:15Z
∑_{k=1}^{n} k = n(n+1)/2
det| 4 8 ; 3 5 | = -4
168K
3x² + 3x + 6 = 0
det| 9 4 ; 1 10 | = 86
144K
∇²t = 0
∑_{k=1}^{n} k = n(n+1)/2
259K
7z² + 2z + 0 = 0
det| 2 8 ; 7 3 | = -50
218K