Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-18 22:41Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
384K
det| 11 9 ; 4 12 | = 96
∇ × E = −∂B/∂t
det| 9 4 ; 1 10 | = 86
57K
det| 3 1 ; 7 4 | = 5
293K
∑_{k=1}^{n} k = n(n+1)/2
110K