Re: "Cascaded sums"?
- To: mathgroup at smc.vnet.net
- Subject: [mg59204] Re: "Cascaded sums"?
- From: "Steve Luttrell" <steve_usenet at _removemefirst_luttrell.org.uk>
- Date: Tue, 2 Aug 2005 00:42:27 -0400 (EDT)
- References: <dckb96$o4j$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
You are probably thinking of Horner form (which is a bit different from what you wrote, but I suspect it is what you meant to write). This is handled by the package Algebra`Horner`. Steve Luttrell "AES" <siegman at stanford.edu> wrote in message news:dckb96$o4j$1 at smc.vnet.net... >A Mathematic calculation is yielding a result of the form > > (x^4 + a (x^3 + a (x^2 + a ( x + a )))) > > for the case n = 4, and analogous results for larger n; and Mathematica > seems to be able to do some interesting simplifications and factoring of > these results. > > I'm sure I learned about this form in a math class somewhere along the > line, but this was 50+ years ago. Could some kind soul remind me of > what this form is called, and maybe some of its interesting properties? > > Thanks . . . >