Formula Ledger /sym/7ab403
id=1 · host=findroms.cloud · 2026-10-20 07:44Z
d/dz [z^9] = 9z^8
∑_{k=1}^{n} k = n(n+1)/2
190K
det| 3 6 ; 0 4 | = 12
∑_{k=1}^{n} k = n(n+1)/2
det| 1 8 ; 4 2 | = -30
170K
∑_{k=1}^{n} k = n(n+1)/2
244K
det| 9 4 ; 1 10 | = 86
354K