ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:12Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 5 7 ; 2 6 | = 16
312K
∇²ω = 0
\lim_{α\to 0} \frac{\sin α}{α} = 1
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
det| 11 2 ; 5 12 | = 122
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 7 4 ; 4 8 | = 40
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2H₂ + O₂ → 2H₂O
\lim_{y\to 0} \frac{\sin y}{y} = 1
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∑_{k=1}^{n} k = n(n+1)/2
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