Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 02:01Z
∇²x = 0
\frac{8}{6} \sum_{i=1}^{n} i^{2}
168K
\frac{4}{9} \sum_{i=1}^{n} i^{2}
446K
8n² + 3n + 6 = 0
∂x/∂α = 7x
∑_{k=1}^{n} k = n(n+1)/2
259K
\lim_{γ\to 0} \frac{\sin γ}{γ} = 1
\lim_{β\to 0} \frac{\sin β}{β} = 1
det| 9 4 ; 1 10 | = 86
218K
det| 6 6 ; 5 7 | = 12
354K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
∫₀^∞ e^(-θ²) dθ = √π / 2
70K
∇²n = 0