Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 22:40Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
385K
det| 11 9 ; 4 12 | = 96
∇ × E = −∂B/∂t
det| 2 7 ; 7 3 | = -43
305K
5z² + 5z + 0 = 0
det| 5 9 ; 7 6 | = -33
34K
det| 7 4 ; 4 8 | = 40
354K