Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 22:53Z
F = G m₁m₂ / r²
\binom{n}{k} = \frac{n!}{k!(n-k)!}
2H₂ + O₂ → 2H₂O
det| 8 4 ; 0 9 | = 72
Fe₂O₃ + 3CO → 2Fe + 3CO₂
197K
det| 3 1 ; 4 4 | = 8
∑_{k=1}^{n} k = n(n+1)/2
262K
∑_{k=1}^{n} k = n(n+1)/2
196K
6z² + 6z + 7 = 0