Commutative inputs should be able to be switched/rotated as part of cleanup to remove wire bends or crossings.

[EngrStudent]

Scalar multiplication is commutative.  (demo)

It is axiom that "a * b = b * a" if "a" and "b" are scalars.

Scalar addition is commutative too.

It is axiom that "a + b = b + a" if "a" and "b" are scalars.

If the diagram cleanup recognized such a thing, then it could switch leads on a multiply icon to undo a crossed wire, without changing anything in the function.  I tried it, and to my poor ability to tell, it seems to not be undoing the wire-crossings that it could clean up.  There are plenty of things that do commutate, and if re-arranging inputs was enabled for them, then cleaner diagrams could be  made.

[RavensFan]

I'd prefer this not to happen.

Block diagram cleanup is great at cleaning up really messing diagrams, or straightening out small areas of code.  But it is far from perfect.  When I use BDC, I often tweak things around from what its final result is.

If a crossed wire left behind is the worst thing remaining from BDC after using it, I'll gladly clean that up myself.  But I really don't want it getting down into the fine details of the order of wiring on operators even if they are commutative and functionally equivalent.

[Jeff-P]

Any idea that has received less than 10 kudos within 3 years after posting will be automatically declined.