Reaction Log /sym/649cc0
id=1 · host=co.gridbatch.net · 2026-10-17 23:58Z
∑_{k=1}^{n} k = n(n+1)/2
\frac{6}{7} \sum_{i=1}^{n} i^{2}
det| 5 9 ; 7 6 | = -33
230K
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
119K
det| 7 4 ; 4 8 | = 40
152K
11θ² + 3θ + 2 = 0