T. W. Urp wrote:
> Vincent Fourmond wrote long time ago:
> >"Try transposing your matrix first, if that is what you need. Are you
> >dealing with transformation matrices (which are not real matrices) ?"
> >Yes indeed, SVG 2D transformation matrices. These matrices are 3x3.
>
> They never taught me about transposing, just matrix multiplication, and
> googel didnt help either. What is transposing (for transformation matrices)?

If you have a 3x3 matrix like:
  a b c
  d e f
  g h i
then its transpose is:
  a d g
  b e h
  c f i

If you have a 2x3 matrix like:
  a b c
  d e f
then its transpose is:
  a d
  b e
  c f

In other words, swap rows and columns. (Excel even knows how to do
this, under Paste Special.)