Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:39Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
46K
det| 12 9 ; 5 13 | = 111
468K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
det| 1 4 ; 3 2 | = -10
289K
∂x/∂θ = 8x
CH₄ + 2O₂ → CO₂ + 2H₂O
339K
3φ² + 4φ + 2 = 0
det| 2 7 ; 7 3 | = -43
358K
det| 7 4 ; 4 8 | = 40
121K