Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:50Z
∑_{k=1}^{n} k = n(n+1)/2
det| 9 4 ; 1 10 | = 86
168K
∑_{k=1}^{n} k = n(n+1)/2
446K
3x² + 3x + 6 = 0
det| 4 2 ; 6 5 | = 8
371K
∇²t = 0
det| 4 8 ; 3 5 | = -4
259K
det| 10 7 ; 3 11 | = 89
86K
7z² + 2z + 0 = 0
∑_{k=1}^{n} k = n(n+1)/2
354K