Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:51Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{6}{1} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
289K
∂x/∂θ = 8x
det| 11 5 ; 0 12 | = 132
339K
∫₀^∞ e^(-θ²) dθ = √π / 2
177K
3φ² + 4φ + 2 = 0
∫₀^∞ e^(-ω²) dω = √π / 2
121K