Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-21 05:47Z
ω = 2πf
\oint_C \vec{F}\cdot d\vec{r} = 0
∑_{k=1}^{n} k = n(n+1)/2
281K
∑_{k=1}^{n} k = n(n+1)/2
73K
∇ × E = −∂B/∂t
e^{i\pi} + 1 = 0
det| 7 4 ; 4 8 | = 40
54K
2r² + 6r + 5 = 0
det| 9 2 ; 4 10 | = 82
∇²r = 0