Reaction Log /sym/649cc0
id=1 · host=co.gridbatch.net · 2026-10-18 00:32Z
\oint_C \vec{F}\cdot d\vec{r} = 0
\oint_C \vec{F}\cdot d\vec{r} = 0
109K
Fe₂O₃ + 3CO → 2Fe + 3CO₂
\binom{n}{k} = \frac{n!}{k!(n-k)!}
122K
det| 3 6 ; 0 4 | = 12
\binom{n}{k} = \frac{n!}{k!(n-k)!}
250K
∑_{k=1}^{n} k = n(n+1)/2
261K
∇²y = 0
\binom{n}{k} = \frac{n!}{k!(n-k)!}
352K
\frac{1}{7} \sum_{i=1}^{n} i^{2}
349K