Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:34Z
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
46K
det| 3 1 ; 7 4 | = 5
468K
\frac{6}{1} \sum_{i=1}^{n} i^{2}
∂x/∂θ = 8x
3φ² + 4φ + 2 = 0
CH₄ + 2O₂ → CO₂ + 2H₂O
121K
5ω² + 6ω + 0 = 0
∫₀^∞ e^(-θ²) dθ = √π / 2