Formula Ledger /sym/7ab403
id=1 · host=findroms.cloud · 2026-10-20 07:42Z
d/dz [z^9] = 9z^8
det| 1 8 ; 4 2 | = -30
190K
det| 3 6 ; 0 4 | = 12
det| 9 4 ; 1 10 | = 86
248K
∑_{k=1}^{n} k = n(n+1)/2
∑_{k=1}^{n} k = n(n+1)/2
100K
det| 11 4 ; 5 12 | = 112
138K