Hi,
I'm trying to to do some finite calculus with MAXIMA.
But I don't know how to express "x to the m falling",
i.e., x(x-1)(x-2)...(x-m+1) in MAXIMA conveniently.
Is MAXIMA aware of this notation?
If I express "k to the m falling" as k!/(k-m)! in nusum, I
get:
(C1) nusum(k!/(k-m)!,k,0,n);
(n + 1)! m
(D1) ---------------- + --------------
(m + 1) (n - m)! (m + 1) (- m)!
How can I abtain the desired result
"n to the (m+1) falling"/(m+1) ?
--
Wang Yin
Deparment of Computer Science and Technology,
Tsinghua University,
100084
Beijing China