SW for Nyquist plot

[Peter Percival]

Is there free software that will draw Nyquist plots of linear DEs? I'm
hoping for o/p of an image file that I can embed in TeX.
--
Do, as a concession to my poor wits, Lord Darlington, just explain
to me what you really mean.
I think I had better not, Duchess. Nowadays to be intelligible is
to be found out. -- Oscar Wilde, Lady Windermere's Fan

 

On Tue, 25 Jul 2017, Peter Percival wrote:

Is there free software that will draw Nyquist plots of linear DEs? I'm
hoping for o/p of an image file that I can embed in TeX.
--

http://maxima-online.blogspot.com/2010/10/plot-nyquist.html
seems to show how to do it the plots in maxima. This machine doesn't have
maxima on it and their example choked on my phone.

maxima will output equations in TeX format so I'd be surprised if it
doesn't give you plots that can use too. I think it atually uses gnuplot
for graphing and gnuplot can output .eps and ``LaTeX picture
environment'', so maxima would be able to.

You can definately use maxima to reduce L(s) to ratios of polynomials &
plot them parametrically in gnuplot.

Ron

 

[Peter Percival]

colonel_hack@yahoo.com wrote:

On Tue, 25 Jul 2017, Peter Percival wrote:

Is there free software that will draw Nyquist plots of linear DEs?
I'm hoping for o/p of an image file that I can embed in TeX.
--

http://maxima-online.blogspot.com/2010/10/plot-nyquist.html

Thank you.

seems to show how to do it the plots in maxima. This machine doesn't
have maxima on it and their example choked on my phone.

maxima will output equations in TeX format so I'd be surprised if it
doesn't give you plots that can use too. I think it atually uses gnuplot
for graphing and gnuplot can output .eps and ``LaTeX picture
environment'', so maxima would be able to.

You can definately use maxima to reduce L(s) to ratios of polynomials &
plot them parametrically in gnuplot.

Ron

--
Do, as a concession to my poor wits, Lord Darlington, just explain
to me what you really mean.
I think I had better not, Duchess. Nowadays to be intelligible is
to be found out. -- Oscar Wilde, Lady Windermere's Fan