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MathGroup Archive 2007

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Re: Polynomial as a List

  • To: mathgroup at smc.vnet.net
  • Subject: [mg77336] Re: Polynomial as a List
  • From: "Dr. Wolfgang Hintze" <weh at snafu.de>
  • Date: Thu, 7 Jun 2007 03:40:30 -0400 (EDT)
  • References: <f43ghr$2db$1@smc.vnet.net>
  • Reply-to: "Dr. Wolfgang Hintze" <weh at snafu.de>

"Nick" <hoffmannick at gmail.com> schrieb im Newsbeitrag 
news:f43ghr$2db$1 at smc.vnet.net...
>I have a polynomial,
> Lets say:
>
> 1 + x + x^2 + x^3 + x^4
>
>
> and all I need to do is get that into a list of this form
>
> {x^4, x^3, x^2, x, 1}
>
>
> Can anyone help me figure this out?
>
> Thanks so much!
>
>
Nick, just tell mathematica literally what you want:
"Make me a list from (1+x+...)"

Here you go

List @@ (1 + x + x^2 + x^3 + x^4)
{1, x, x^2, x^3, x^4}

Technically speaking you're replacing the head Plus by the head List.

Regards,
Wolfgang 



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