[eigen] tri1 = tri2*tri1

[Sebastian Birk <birk@xxxxxxxxxxxxxxxxxxxxx>]

Hi,

first, I want to thank Gael for the quick fix of bug 879.
(http://eigen.tuxfamily.org/bz/show_bug.cgi?id=879)

But, I have a follow-up question on that.
What I'm actually computing is
  tri1 = tri2*tri1
and currently I use dense square matrices for that with
  temp.tri = b*a.tri
  a.swap(temp)

Is there a better way to compute this except from implementing the
inplace product on my own?


Sebastian