Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 22:43Z
det| 5 1 ; 4 6 | = 26
∑_{k=1}^{n} k = n(n+1)/2
46K
∑_{k=1}^{n} k = n(n+1)/2
468K
∑_{k=1}^{n} k = n(n+1)/2
det| 7 4 ; 4 8 | = 40
289K
12φ² + 4φ + 4 = 0
det| 11 4 ; 5 12 | = 112
339K
det| 11 9 ; 0 12 | = 132
358K
∑_{k=1}^{n} k = n(n+1)/2
121K