Distance between to cylinders (no coplanar)

Just for fun, you can write it like this :
ASSIGN\DIST=ABS(DOT((CYL1.XYZ-CYL2.XYZ),CROSS(CYL1.IJK,CYL2.IJK)))
OK, It looks hard, but it's more simple than construct the good alignment and dimension 2D distance to do it...