Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 22:13Z
F = G m₁m₂ / r²
Fe₂O₃ + 3CO → 2Fe + 3CO₂
52K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∫₀^∞ e^(-t²) dt = √π / 2
90K
∑_{k=1}^{n} k = n(n+1)/2
91K
2H₂ + O₂ → 2H₂O
det| 8 4 ; 0 9 | = 72
det| 3 1 ; 4 4 | = 8