ChemCalc Dump /sym/93428e
id=1 · host=br.gridbatch.net · 2026-10-19 01:52Z
\binom{n}{k} = \frac{n!}{k!(n-k)!}
∇²ω = 0
\oint_C \vec{F}\cdot d\vec{r} = 0
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\lim_{y\to 0} \frac{\sin y}{y} = 1
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\binom{n}{k} = \frac{n!}{k!(n-k)!}
∫₀^∞ e^(-θ²) dθ = √π / 2
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Fe₂O₃ + 3CO → 2Fe + 3CO₂
det| 9 7 ; 3 10 | = 69
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