  
 The Y0 :   
 
    0.95  
 
 The Y1 :   
 
    0.95351  
 
 The Y2 :   
 
    0.95335  
 
 The Y0 :   
 
    0.91007  
 
 The Y1 :   
 
    0.91289  
 
 The Y2 :   
 
    0.91277  
 
 The Y0 :   
 
    0.87490  
 
 The Y1 :   
 
    0.87720  
 
 The Y2 :   
 
    0.87711  
 
 The Y0 :   
 
    0.84366  
 
 The Y1 :   
 
    0.84556  
 
 The Y2 :   
 
    0.84549  
 
 The calculated value of y(0.2):   
 
    0.84549  
 
 The exact value is of y(0.2):    
 
    0.84579  
 
 The error is :   
 
    0.00030  