Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:14Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
168K
3x² + 3x + 6 = 0
det| 3 7 ; 2 4 | = -2
144K
det| 7 4 ; 4 8 | = 40
371K
∇²t = 0
7z² + 2z + 0 = 0
det| 5 9 ; 7 6 | = -33
234K