On 15 Aug 2009, at 21:58, joel wrote:
Edward Grace wrote:
Yes. By 'table -> vector/covector' do you mean in a similar manner to 'reshape' in MATLAB? If so good. Yes. Your table has data that can be N-D, when you turn it into a vector, you do somethign akin to v = t(:) in matlab
Super.
P = 2*(identity(4) - outer_product(k,k)/inner_product(k,k)); [snip]
Ok, I'm maybe dense here, but, can you restate this like I was 4 yo ? What are the "redundant" parts ?
Maybe I'm being a little obscure, you get a symmetric matrix when it's evaluated. Let's just expand it out fully (for a length 3 real vector) v = <a,b,c> assuming that we ignore the inner product and the factor of 2 (scalars). Note that the components above and below the diagonal are the same. In BLAS (or indeed boost::ublas) this would be a matrix of symmetric type (or Hermitian if complex).
Sounds good to me. When's it finished? ;-) Dunno. I hope soon ;)
From my humble experiences, thinking you've finished means you've only just about figured out what the problem actually is! -ed