  
 Integral 0 to 1 f(x)dx   
 
 Are the c1,c2 constants :    
 
    0.5  
    0.5  
 
 Are the corresponding roots (x1,x2) :    
 
    0.2113249  
    0.7886751  
 
 c0*f(x0)+c1*f(x1)  