 
            
            
            
            
                3 Dec
                
                    2012
                
            
            
                3 Dec
                
                '12
                
            
            
            
        
    
                12:06 p.m.
            
        On 2012-12-03T10:31-0500, Brent Yorgey wrote:
Unfortunately it is very difficult to show the process of evaluation in an email because for this expression it really requires thinking about the expression as a *graph*, and those are hard to draw in an email.
I think this is a good example of using ghc-vis, so I just added it to my examples, in case anyone wants to see the graph version: http://felsin9.de/nnis/ghc-vis/#fibonacci Dennis