Reaction Log /sym/649cc0
id=1 · host=co.gridbatch.net · 2026-10-17 23:19Z
∑_{k=1}^{n} k = n(n+1)/2
\binom{n}{k} = \frac{n!}{k!(n-k)!}
465K
\frac{6}{7} \sum_{i=1}^{n} i^{2}
\binom{n}{k} = \frac{n!}{k!(n-k)!}
60K
∑_{k=1}^{n} k = n(n+1)/2
\frac{4}{9} \sum_{i=1}^{n} i^{2}
152K
11θ² + 3θ + 2 = 0
\lim_{α\to 0} \frac{\sin α}{α} = 1
173K
det| 4 6 ; 4 5 | = -4
329K
det| 9 4 ; 1 10 | = 86
368K