deriv1(th,n,j,s)=\ s=0;\ for(j=1,n,s=s+th[j]);\ print1(" 0 "); print(s);\ s=0;\ for(j=1,n,s=s+j*th[j]);\ print1(" 1 "); print(s);\ s=0;\ for(j=1,n,s=s+j*(j-1)/2*th[j]);\ print1(" 2 "); print(s) deriv2(th,n1,n2,j1,j2,s)=\ s=0;\ for(j1=1,n1,for(j2=1,n2,s=s+th[j1,j2]));\ print1(" 0,0 "); print(s);\ s=0;\ for(j1=1,n1,for(j2=1,n2,s=s+j1*th[j1,j2]));\ print1(" 1,0 "); print(s);\ s=0;\ for(j1=1,n1,for(j2=1,n2,s=s+j2*th[j1,j2]));\ print1(" 0,1 "); print(s);\ s=0;\ for(j1=1,n1,for(j2=1,n2,s=s+j1*(j1-1)/2*th[j1,j2]));\ print1(" 2,0 "); print(s);\ s=0;\ for(j1=1,n1,for(j2=1,n2,s=s+j1*j2*th[j1,j2]));\ print1(" 1,1 "); print(s);\ s=0;\ for(j1=1,n1,for(j2=1,n2,s=s+j2*(j2-1)/2*th[j1,j2]));\ print1(" 0,2 "); print(s)