
> a := 1;
                                      1
> evalf(a);
                                     1.
> b := 2;
                                      2
> c := 3;
                                      3
> E := a*z^2+b*z+c;
                                 2          
                                z  + 2 z + 3
> niy := .4;
                                     0.4
> G := E/(2*(1+niy));
                             2                               
               0.3571428571 z  + 0.7142857142 z + 1.071428571
> Alfa11 := 1/E; Alfa12 := -(1*niy)/E; Alfa13 := -(1*niy)/E;
                                     1      
                                ------------
                                 2          
                                z  + 2 z + 3
                                     0.4     
                               - ------------
                                  2          
                                 z  + 2 z + 3
                                     0.4     
                               - ------------
                                  2          
                                 z  + 2 z + 3
> Alfa22 := 1/E; Alfa23 := -(1*niy)/E; Alfa33 := 1/E;
                                     1      
                                ------------
                                 2          
                                z  + 2 z + 3
                                     0.4     
                               - ------------
                                  2          
                                 z  + 2 z + 3
                                     1      
                                ------------
                                 2          
                                z  + 2 z + 3
> Alfa44 := 1/G; Alfa55 := 1/G; Alfa66 := 1/G;
                                     1                       
               ----------------------------------------------
                             2                               
               0.3571428571 z  + 0.7142857142 z + 1.071428571
                                     1                       
               ----------------------------------------------
                             2                               
               0.3571428571 z  + 0.7142857142 z + 1.071428571
                                     1                       
               ----------------------------------------------
                             2                               
               0.3571428571 z  + 0.7142857142 z + 1.071428571
> 


