What is what in a 4*4 matrix
I am kinda new to this so please bare(sp) with me
When I describe the orientation of something I am supposed to use a 4*4 array aka matrix..right? But what does each field represent in that matrix? This is kinda where I am now. Each row represent a vector and the lenght of that vector is always 1. But what does the last row represent. Links are highly appriciated. Is the first row always representing the "models" X values second row Y etc...?
dXX dYX dZX Rotation aroundX (A)?
dXY dYY dZY Rotation aroundY (B)?
dXZ dYZ dZZ Rotation aroundZ (C)?
? ? ? ?