Hi!
Barry After sleeping on it, it may be ok to include these methods in
Barry Mat as methods for filling up matrices so long as in the end
Barry you end up with a Mat that you then use as an operator.
Yes that sounds like a good test to me. If the end result of the
computation is a matrix which
Hi!
Barry Certainly pointwise addition is the same as adding two operators
Barry together (PETSc has this with MatAXPY), but what about, for example,
Barry pointwise multiply?
Pointwise multiply is the Hadamard product of two matrices matrix. You
have something like MatGetRowMax which strictly
Simon Burton simon at arrowtheory.com writes:
Oh, that should probably read:
exp( -1/2\sigma^{2} ||x1_{i} - x2_{j}||_{2}^{2})
And when we vectorize this operation:
||x1_i - x2_j||^2 = ||x1_i||^2 + ||x2_i||^2 + 2*(x1_i,x2_j)
and the last term is the ip matrix.
It seems that this
I withdraw my concern for the (I thought) possible mislocation
of the various operations on Matrices. So folks should feel
free to begin to add them.
Barry
On Sat, 20 Aug 2005, S V N Vishwanathan wrote:
Hi!
Barry After sleeping on it, it may be ok to include these methods in
Barry
