This is a very good point that seems very likely to be the source of the confusion.
On Wed, Aug 31, 2011 at 6:06 PM, Dmitriy Lyubimov <dlie...@gmail.com> wrote:
> Perhaps confusion may be stemming from the fact that inverse equal
> transpose if matrices are orthogonal (or even orthonormal), so
> sometimes Q^{-1}\equiv{Q}'
>
