12 Jan
                
                    2012
                
            
            
                12 Jan
                
                '12
                
            
            
            
        
    
                4:01 p.m.
            
        Yves Parès 
uvector is deprecated, its functionnalities has been ported into vector.
Yes, but a Ratio a instance hasn't been ported. I admit that I have overlooked the “deprecated” warning, and agree that it is better to write an instance by yourself than use a deprecated package. Dead things should stay dead.