🚀 go-pugleaf

In article <Dec.21.13.36.30.1992.21577@gandalf.rutgers.edu> rgonzal@gandalf.rutgers.edu (Ralph Gonzalez) writes:
>jwiegand@moe.eng.temple.edu (James Wiegand) writes:
>
>>In article <1h08q1INNl15@flop.ENGR.ORST.EDU> saleh@ece.orst.edu (Hassan Saleh) writes:
>>>
>>>   Is there any public domain program available for the solution
>>>   of nonlinear optimal control problems ? I tried using colnew
>>>   to solve the resulting two-point boundary value problems but
>>>   I always get "singular elimination matrix" some where.
>>>
>>>   H. I. SALEH
>
>>According to what I've heard, there is no single method for nonlinear
>>control systems in general. 
>
>>jim
>>... willing to be proven wrong.
>
>I'm not an expert in this area, but I think the only general-purpose
>approach for nonlinear control systems is the brute-force approach.
>That is, you generally can't solve the math analytically (sometimes
>it's difficult enough just to formulate it). Therefore you should
>apply an adaptive or learning controller to try to optimize your
>performance measure empirically, on-line.
>... If anyone's interested in digging up my dissertation (which
>I've decided is a bit hard to read!), it was 1989, Univ. of 
>Pennsylvania. It also goes into applying this approach hierarchically.
>
>-- 
>Ralph Gonzalez, Computer Science, Rutgers Univ., Camden, NJ
>Phone: (609) 757-6122; Internet: rgonzal@elbereth.rutgers.edu
>--

See? I _knew_ this would happen!
jim
...who learns something new each day.