Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:08Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
446K
3x² + 3x + 6 = 0
det| 9 4 ; 1 10 | = 86
144K
det| 12 2 ; 2 13 | = 152
371K
∇²t = 0
det| 5 6 ; 2 6 | = 18
218K
det| 2 8 ; 7 3 | = -50
70K