Field Notes / Σ /sym/3cad98
id=1 · host=formula-vault.cloud · 2026-10-20 23:08Z
∑_{k=1}^{n} k = n(n+1)/2
AgNO₃ + NaCl → AgCl↓ + NaNO₃
446K
det| 4 1 ; 4 5 | = 16
C₆H₁₂O₆ → 2C₂H₅OH + 2CO₂
371K
∫₀^∞ e^(-x²) dx = √π / 2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
86K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\frac{9}{4} \sum_{i=1}^{n} i^{2}
det| 9 4 ; 1 10 | = 86
218K