syms a;mxA1=[(3^0.5)*a/2;-0.5*a;0]
syms mxA1 myA1 mzA1 a mxA1=(3^0.5)*a/2,myA1=-0.5*a,mzA1=0mA1(:,:,1)=mxA1;mA1(:,:,2)=myA1;mA1(:,:,3)=mzA1;
f
