Symbolic Index /sym/ea4bfa
id=1 · host=au.commstar.world · 2026-10-20 06:23Z
det| 8 1 ; 6 9 | = 66
det| 2 7 ; 7 3 | = -43
244K
det| 9 4 ; 1 10 | = 86
52K
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
90K
1n² + 9n + 0 = 0
F = ma
∑_{k=1}^{n} k = n(n+1)/2
262K