Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 08:03Z
\oint_C \vec{F}\cdot d\vec{r} = 0
det| 4 8 ; 3 5 | = -4
468K
∇ × E = −∂B/∂t
det| 7 4 ; 4 8 | = 40
289K
10x² + 2x + 4 = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
177K
∑_{k=1}^{n} k = n(n+1)/2
358K