Affine transforms - matrix algebra

Kirill.Prazdnikov kirill.prazdnikov at
Tue Jul 17 11:49:41 PDT 2012

On 17.07.2012 22:20, Jim Graham wrote:
> Similarly with append and prepend - they do not remove the ambiguity

These two are the most confusing.

If we look at a matrix (A) as a function which translate a point (x) 
form R3 into a point (y) from R3 :
     A(x) = y

What does append ?

A.append(B): is it a  A(B(x)) or B(A(x)) ?


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