Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:43Z
∑_{k=1}^{n} k = n(n+1)/2
det| 7 4 ; 4 8 | = 40
468K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
∂x/∂θ = 8x
3φ² + 4φ + 2 = 0
det| 10 7 ; 3 11 | = 89
358K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
316K