Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:50Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{6}{1} \sum_{i=1}^{n} i^{2}
det| 4 7 ; 2 5 | = 6
278K
∂x/∂θ = 8x
det| 11 9 ; 0 12 | = 132
177K
3φ² + 4φ + 2 = 0
Fe₂O₃ + 3CO → 2Fe + 3CO₂
121K