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 > ______________________________________________________________________