Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 02:07Z
∇²x = 0
8n² + 3n + 6 = 0
det| 3 6 ; 0 4 | = 12
144K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
371K
∂x/∂α = 7x
det| 7 8 ; 4 8 | = 24
259K
∑_{k=1}^{n} k = n(n+1)/2
86K
\lim_{γ\to 0} \frac{\sin γ}{γ} = 1
\lim_{β\to 0} \frac{\sin β}{β} = 1
\frac{2}{2} \sum_{i=1}^{n} i^{2}
354K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
∑_{k=1}^{n} k = n(n+1)/2
402K