Newsgroups: comp.sys.handhelds
Path: utzoo!utgpu!watserv1!vlsi!watale!silent
From: silent@watale.uwaterloo.ca (Peter Hansen and David Woodcock)
Subject: Control Systems Design Tools (Root-Locus, etc.)
Organization: University of Waterloo
Date: Sat, 20 Oct 90 07:51:33 GMT
Message-ID: <1990Oct20.075133.5032@vlsi.waterloo.edu>
Summary: Has anybody beat me to building some of these?
Keywords: laplace,root-locus,control,design,pole-zero,step response
Sender: silent@watale.uwaterloo.edu (Peter Hansen)
Lines: 16

My question for the Net is:  has anyone out there had the gumption
and patience to create any design tool(s) of the sort that would
be of use to somebody studying and designing digital and analogue 
controllers?  More specifically, programs to convert to and from the
Laplace and Z domains; programs to plot Root-Loci, Poles-and-Zeros, 
Time Responses, or Bode/Phase and Nyquist plots; programs to calculate
the coefficients of various filters; anything perhaps less sophisticated
but related to these?

A few of these tools I do not intend to be without for very long but
I would really love to spend my time more efficiently than in reinventing
and coding the wheel.

--
Peter Hansen, Systems Design Engineering, University of Waterloo
silent@watale.uwaterloo.edu