Reaction Log /sym/649cc0
id=1 · host=co.gridbatch.net · 2026-10-17 23:22Z
∑_{k=1}^{n} k = n(n+1)/2
det| 4 2 ; 6 5 | = 8
465K
\frac{6}{7} \sum_{i=1}^{n} i^{2}
\frac{2}{2} \sum_{i=1}^{n} i^{2}
230K
∑_{k=1}^{n} k = n(n+1)/2
det| 2 2 ; 4 3 | = -2
119K
11θ² + 3θ + 2 = 0
\frac{8}{6} \sum_{i=1}^{n} i^{2}
255K
det| 7 7 ; 6 8 | = 14
det| 11 5 ; 0 12 | = 132
329K
\binom{n}{k} = \frac{n!}{k!(n-k)!}
7ψ² + 4ψ + 3 = 0
2x² + 9x + 3 = 0