Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 23:55Z
det| 12 3 ; 2 13 | = 150
det| 2 7 ; 7 3 | = -43
8K
∂y/∂φ = 5y
\frac{3}{2} \sum_{i=1}^{n} i^{2}
Fe₂O₃ + 3CO → 2Fe + 3CO₂
276K
∫₀^∞ e^(-n²) dn = √π / 2
F = G m₁m₂ / r²
∫₀^∞ e^(-θ²) dθ = √π / 2
∑_{k=1}^{n} k = n(n+1)/2
CH₄ + 2O₂ → CO₂ + 2H₂O
\frac{2}{6} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}