Table of connectivity and asssembly process
[tc, K0] = assemb3d(elem, DOFn, DOFe, kG, nn, ne)
Table of elements [ne x 9]
Number of DOFs per node (global coordinate system) [1 x 1]
Number of DOFs per element (global coordinate system) [1 x 1]
Global stiffness matrix [ne*6 x 6]
Number of nodes [1 x 1]
Number of elements [1 x 1]
Table of connectivity [ne*DOFe x 3]
Complete stiffness matrix of the structure [DOFn*nn x DOFn*nn]