Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 17:13Z
\frac{12}{7} \sum_{i=1}^{n} i^{2}
∑_{k=1}^{n} k = n(n+1)/2
479K
CH₄ + 2O₂ → CO₂ + 2H₂O
det| 7 4 ; 4 8 | = 40
102K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
\oint_C \vec{F}\cdot d\vec{r} = 0
264K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
276K
∇²α = 0
ω = 2πf
∑_{k=1}^{n} k = n(n+1)/2
62K