Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:50Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
468K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
∂x/∂θ = 8x
det| 6 6 ; 5 7 | = 12
339K
CH₄ + 2O₂ → CO₂ + 2H₂O
177K
3φ² + 4φ + 2 = 0
det| 2 8 ; 7 3 | = -50
11K