Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:50Z
∑_{k=1}^{n} k = n(n+1)/2
3x² + 3x + 6 = 0
∑_{k=1}^{n} k = n(n+1)/2
144K
∇²t = 0
7z² + 2z + 0 = 0
det| 4 2 ; 5 5 | = 10
det| 4 2 ; 6 5 | = 8
218K
∑_{k=1}^{n} k = n(n+1)/2
354K
det| 5 6 ; 2 6 | = 18
402K