Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 22:56Z
F = G m₁m₂ / r²
\binom{n}{k} = \frac{n!}{k!(n-k)!}
2H₂ + O₂ → 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
100K
det| 8 5 ; 3 9 | = 57
137K
∑_{k=1}^{n} k = n(n+1)/2
197K
det| 10 5 ; 4 11 | = 90
262K