12 May
                
                    2024
                
            
            
                12 May
                
                '24
                
            
            
            
        
    
                1:58 p.m.
            
        On 12. May 2024, at 13:56, Hans Dembinski <hans.dembinski@gmail.com> wrote:
Last but not least, products of quaterions are always pure rotations as they should be. When you do products of 3x3 matrices instead, the result may not be a pure rotation anymore because of that,
Sorry, I edited my text too much. By "that" I meant finite floating point precision.