Matrix manipulation in Mathcad

As an aside, I had a look at your previous worksheet.  Your two basic choices are:

• to treat the first r as a special case, leaving as is and tacking on a q-like extended version of r, 
• Use just an extended r, specifying initial values for n1, d1, n2, d2, & cv 

I was going to ask you whether the second approach was feasible and, if it was OK, for some suitable initial values.

Have you now got your program sorted(!) to your satisfaction?

Stuart