Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-19 07:37Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{6}{1} \sum_{i=1}^{n} i^{2}
∂x/∂θ = 8x
det| 7 6 ; 1 8 | = 50
339K
3φ² + 4φ + 2 = 0
det| 9 6 ; 7 10 | = 48
358K
5ω² + 6ω + 0 = 0
det| 5 2 ; 1 6 | = 28
∫₀^∞ e^(-θ²) dθ = √π / 2