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Re: A clarification question

  • To: mathgroup at smc.vnet.net
  • Subject: [mg38741] Re: [mg38705] A clarification question
  • From: Selwyn Hollis <selwynh at earthlink.net>
  • Date: Tue, 7 Jan 2003 07:29:50 -0500 (EST)
  • References: <200301060842.DAA03423@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Sounds like something my students would write. Anyway, maybe it's 
something like this:

Given vectors y and z, find the vector x (in some subspace?) such that 
<x,z> is a close as possible to <y,z>; that is, minimize Abs[<x-y,z>].

??

---
Selwyn Hollis

David R. Hardoon wrote:
> Hello all,
> 
> I have a clarification question that maybe you could tell
> me what is meant.
> 
> "find the vector which has the closest inner product with vector y"
> 
> and say we have vector x and z.
> 
> can any one clarify what you think is meant by closest?
> 
> thanks in advance,
> David.
> 
> 
> " The hunger for knowledge only grows as one knows more....."
> 
> David R. Hardoon                 David.R.Hardoon at cs.rhul.ac.uk
> Dept of Computer Science, Royal Holloway, University of London
> Phone: +44 1784 443912                    Fax: +44 1784 439786
> Mobile: +44 7967 634954           www: http://g4.cs.rhul.ac.uk
> 
> 
> 
> 
> 



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