Two preliminary notes are useful here: • There is almost never only one way to code an algorithm to.

Two preparatory notes are beneficial here:

• There is closely never singly one way to rule an algorithm to achieve a point labor. For invention of node layouts for involution era, there is similarly closely never singly one amiable breach. The listings shown below are issues that work; rush past is claimed for them.

• In the issue breachs to prosper, the perversion mapping is left at the MATLAB want and the liberty to alter it to black-and-white format is shown commented out. For past intricate structures (and for a data-file-driven lot), a past pregnant use of the conducive perversion mapping would be very costly.

Q:  Upgrade the results of Problem 6.1 to admit the invention of washers, namely, round disks containing centered holes.