  
 Value of y at x :   
 
    0.05  
 
    0.95  
 
 Value of y at x :   
 
    0.1  
 
    0.90702  
 
 Value of y at x :   
 
    0.15  
 
    0.86963  
 
 Value of y at x :   
 
    0.2  
 
    0.83675  
 
 The calculated value of y(0.2):   
 
    0.83675  
 
 The exact value is of y(0.2):    
 
    0.84579  
 
 The error is :   
 
    0.00905  