For the plane structures modeled by triangular elements shown in Figure P6–20, show that...

For the plane structures modeled by triangular elements shown in Figure P6–20, show that numbering in the direction that has fewer nodes, as in Figure P6–20(a) (as opposed to numbering in the direction that has more nodes), results in a reduced bandwidth. Illustrate this fact by filling in, with X’s, the occupied elements in [ K ] for each mesh, as was done in Appendix B.4. Compare the bandwidths for each case.