Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-18 19:24Z
\lim_{n\to 0} \frac{\sin n}{n} = 1
∑_{k=1}^{n} k = n(n+1)/2
det| 1 2 ; 7 2 | = -12
270K
det| 9 1 ; 6 10 | = 84
∑_{k=1}^{n} k = n(n+1)/2
330K
∫₀^∞ e^(-θ²) dθ = √π / 2
Fe₂O₃ + 3CO → 2Fe + 3CO₂
∫₀^∞ e^(-φ²) dφ = √π / 2
7K
AgNO₃ + NaCl → AgCl↓ + NaNO₃
det| 2 7 ; 7 3 | = -43
21K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\frac{2}{6} \sum_{i=1}^{n} i^{2}