Re: [boost] numeric: linear algebra concepts

From: Jeremy Siek (jsiek_at_[hidden])
Date: 2001-03-29 16:30:13

If we want to avoid proxy objects, one option would be to go with the
existing Property Map interface. This uses put() and get() functions,
and reserves operator[] for only when there are lvalues.

On Thu, 29 Mar 2001, Ullrich Koethe wrote:

koethe> Sorry, I was unclear. I meant to say that I want 
koethe> 
koethe>    x[i] = a
koethe> 
koethe> replaced with 
koethe> 
koethe>    x.set(i,a)
koethe> 
koethe> because this is so much more flexible (with only a minor loss in
koethe> readability, e.g.
koethe> 
koethe> magnitude.set(i, sqrt(x[i]*x[i] + y[i]*y[i]))
koethe> 
koethe> (of course, there are hacks to make x[i] = a work when x[i] is a
koethe> computed attribute, but they are really just hacks)
koethe> -- 
koethe>  ________________________________________________________________
koethe> |                                                                |
koethe> | Ullrich Koethe  Universität Hamburg / University of Hamburg    |
koethe> |                 FB Informatik / Dept. of Computer Science      |
koethe> |                 AB Kognitive Systeme / Cognitive Systems Group |
koethe> |                                                                |
koethe> | Phone: [phone]                Vogt-Koelln-Str. 30 |
koethe> | Fax:   [phone]                D - 22527 Hamburg   |
koethe> | Email: u.koethe_at_[hidden]               Germany             |
koethe> |        koethe_at_[hidden]                        |
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koethe> |________________________________________________________________|
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----------------------------------------------------------------------
 Jeremy Siek                        www: http://www.lsc.nd.edu/~jsiek/
 Ph.D. Candidate                  email: jsiek_at_[hidden]
 Univ. of Notre Dame         work phone: [phone]
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