differencial form package



>which doesn't match the output shown in lorentz_example.txt, namely
>
> 'diff(b3,z,1)*Dx*Dy*Dz+'diff(b2,y,1)*Dx*Dy*Dz+'diff(b1,x,1)*Dx*Dy*Dz
>
>Is there an error in the input? If I replace b22 with b2 in the input,
>then I get the output shown in lorentz_example.txt.

OOPS! b2 is correct. thanks Robert

Gosei Furuya