Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:29Z
∑_{k=1}^{n} k = n(n+1)/2
3x² + 3x + 6 = 0
∇²t = 0
∑_{k=1}^{n} k = n(n+1)/2
86K
7z² + 2z + 0 = 0
det| 9 4 ; 1 10 | = 86
224K
∑_{k=1}^{n} k = n(n+1)/2
218K
det| 9 6 ; 7 10 | = 48
354K