On Thu, Jan 10, 2013 at 11:07 PM, Don & Cathy Kelly <[email protected]> wrote: > A wee bit of a mix up between what I said and what Aai said (no 'quotes' > appeared to distinguish between the two). > the 9:23 message was from Aai but the > > f=: 13 : '+/-: %>: +:i.y' > > and the result corresponds to a specific immediate "calculator' solution > that I gave > ]R100K=:+/0.5*%1+2*i.100000 > > I had not put it in the form that you present and I thank you for the > re-programming as a function-Gee-I can interpret it- I must be learning > something!!!.
Note that R=:13 :'+/0.5*%1+2*i.y' would be equally valid. > As for an example of the Z-Bus method I gave a small example in a post at > 6:12PM yesterday > I can give more examples but the practical ones I have on hand do involve > complex impedances. > Wiki gives little information so it appears that I will have to put together > some notes that I have - it appears that this approach is something known > mainly in power system analysis. > This is the best I have found so far on line and it is inadequate: > > http://en.wikipedia.org/wiki/Impedance_parameters#The_Z-parameter_matrix > > Inadequate because it assumes the typical application is for a 2-port > network. What do you think of http://en.wikipedia.org/wiki/Ybus_matrix ? Thanks, -- Raul ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
