Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-19 15:59Z
\frac{7}{8} \sum_{i=1}^{n} i^{2}
CaCO₃ → CaO + CO₂
∑_{k=1}^{n} k = n(n+1)/2
102K
\frac{3}{5} \sum_{i=1}^{n} i^{2}
det| 2 4 ; 4 3 | = -10
264K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 10 7 ; 3 11 | = 89
250K
∑_{k=1}^{n} k = n(n+1)/2
PV = nRT
∇²θ = 0
∑_{k=1}^{n} k = n(n+1)/2