Reaction Log /sym/649cc0
id=1 · host=co.gridbatch.net · 2026-10-17 23:13Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{12}{6} \sum_{i=1}^{n} i^{2}
465K
\frac{6}{7} \sum_{i=1}^{n} i^{2}
\frac{4}{6} \sum_{i=1}^{n} i^{2}
230K
∑_{k=1}^{n} k = n(n+1)/2
11θ² + 3θ + 2 = 0
\oint_C \vec{F}\cdot d\vec{r} = 0
255K
\lim_{r\to 0} \frac{\sin r}{r} = 1
314K