Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 00:10Z
∑_{k=1}^{n} k = n(n+1)/2
3x² + 3x + 6 = 0
det| 8 9 ; 4 9 | = 36
371K
∇²t = 0
∑_{k=1}^{n} k = n(n+1)/2
224K
∑_{k=1}^{n} k = n(n+1)/2
234K
det| 7 4 ; 4 8 | = 40
218K
∑_{k=1}^{n} k = n(n+1)/2
354K