Mathematica 9 is now available
Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2011

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: ListCorrelate and Powers

  • To: mathgroup at smc.vnet.net
  • Subject: [mg116279] Re: ListCorrelate and Powers
  • From: "Sjoerd C. de Vries" <sjoerd.c.devries at gmail.com>
  • Date: Wed, 9 Feb 2011 02:12:09 -0500 (EST)
  • References: <iir4nq$6qd$1@smc.vnet.net>

How about:

In[252]:= ListCorrelate[{1, 2, 3, 4}, {a, b, c, d, e}, {1, -1}, {0},
 Power[#2, #1] &, Plus]

Out[252]= {a + b^2 + c^3 + d^4, b + c^2 + d^3 + e^4}

Cheers -- Sjoerd

On Feb 8, 11:08 am, "Harvey P. Dale" <h... at nyu.edu> wrote:
> It is easy to use ListCorrelate to generate the sum of a list
> with each element multiplied by the successive terms in the "kernel."
> For example, ListCorrelate[{1,2,3,4},{a,b,c,d,e}] produces {a+2 b+3 c+4
> d,b+2 c+3 d+4 e}.  Is there any way, using the optional 5th and 6th
> parameters, to generate this list instead:
> {a+b^2+c^3+d^4,b+c^2+d^3+e^4}?
> Thanks.
> Harvey
>
> ______________________________________________________________________
> This email has been scanned by the MessageLabs Email Security System.
> For more information please visithttp://www.messagelabs.com/email
> ______________________________________________________________________



  • Prev by Date: Re: NDSolve changed bahaviour in version 8?
  • Next by Date: Re: ListCorrelate and Powers
  • Previous by thread: Re: ListCorrelate and Powers
  • Next by thread: Re: ListCorrelate and Powers