Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 22:58Z
F = G m₁m₂ / r²
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 9 4 ; 1 10 | = 86
90K
∑_{k=1}^{n} k = n(n+1)/2
91K
2H₂ + O₂ → 2H₂O
∑_{k=1}^{n} k = n(n+1)/2
50K
∑_{k=1}^{n} k = n(n+1)/2
137K