Addison Mauldin wrote:
Thank you very much Fred. Please forgive my ignorance. I don't have a programing background at all.
I am at the point now where I have the sheet implemented, all with units. I am getting stuck on how to pull roots with units attached.
Also, assuming once I get the roots, how do I proceed forward in Mathcad to handle the steps 7. and 8. in my .pdf file?
You wrote "polyroot times vector" and did not call "polyroot of vector".
But even if you would have done it the correct way it would have failed, because Mathcad can't handle vectors consisting of elements of different dimensions (as a .. e are).
So you have either get rid of the units in the coefficients alltogether or at least bring all to the same dimension. The result will be unitless and you have to add the correct unit (s is obviously 1/time so I suggested Hz or 1/sec) manually:
P.S.: The powers of s are powers of the unit seconds and have nothing to do with the variable s.