Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2007
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2007

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

Search the Archive

Re: Dot or Inner ... but not quite

  • To: mathgroup at smc.vnet.net
  • Subject: [mg79714] Re: Dot or Inner ... but not quite
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Thu, 2 Aug 2007 03:56:00 -0400 (EDT)
  • Organization: Uni Leipzig
  • References: <f8n2rc$lp9$1@smc.vnet.net> <f8phgv$1ca$1@smc.vnet.net>
  • Reply-to: kuska at informatik.uni-leipzig.de

Sorry,

  I for got the

Plus @@ (l1*l2)

Regards
   Jens

Jens-Peer Kuska wrote:
> Hi,
> 
> and
> 
> l1*l2
> 
> ??
> 
> 
> Regards
>    Jens
> Diamond, Mark wrote:
>> I have two equi-length lists, the first of number, the second of 
>> (equi-length) lists of numbers , such as
>>
>> l1={1,4,3};
>> l2={{1,7},{1,9},{5,2}};
>>
>> I want to produce 1*{1,7}+4*{1,9}+3*{5,2}
>>
>> It looks so close to Inner that I thought I could use it in some form, but I 
>> have ended up using
>>
>> (#[[1]]*#[[2]])& /@ Transpose[{l1,l2}]
>>
>> Is there a better way using one of the builtin functions with which I am 
>> unfamiliar?
>>
>> Cheers,
>>
>> Mark Diamond 
>>
>>
>>
> 


  • Prev by Date: Re: Double Integration involving Struve and Neumann functions
  • Next by Date: Wolfram Notebook Indexer and Searching Notebooks
  • Previous by thread: Re: Dot or Inner ... but not quite
  • Next by thread: Re: HoldCompleteForm (or HoldFormComplete)