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## Re: Support Octave by new .m files

 From: Hamed Shakouri Subject: Re: Support Octave by new .m files Date: Wed, 3 Jul 2019 13:11:22 -0700

Thanks, I'll check them out.

On Wed, Jul 3, 2019 at 1:09 PM Nicholas Jankowski <address@hidden> wrote:
On Wed, Jul 3, 2019 at 3:52 PM Doug Stewart <address@hidden> wrote:

On Wed, Jul 3, 2019 at 3:49 PM Hamed Shakouri <address@hidden> wrote:
By the way, it doesn't support the FOH approximation method!
Maybe TUSTIN can work the same.
Thank you anyway.

Do you want to make us a FOH method?

FYI - the control package page can be found here:

you can compare any function there with it's matlab equivalent by searching on the mathworks site.  doing so for c2d reveals that under Methods:
Matlab supports:
'zoh' — Zero-order hold (default). Assumes the control inputs are piecewise constant over the sample time Ts.
'foh' — Triangle approximation (modified first-order hold). Assumes the control inputs are piecewise linear over the sample time Ts.
'impulse' — Impulse invariant discretization
'tustin' — Bilinear (Tustin) method
'matched' — Zero-pole matching method
'least-squares' —

while Octave supports:
’impulse’ Impulse Invarient transformation.
’zoh’ Zero-order hold or matrix exponential.
’tustin’, ’bilin’ Bilinear transformation or Tustin approximation.
’prewarp’ Bilinear transformation with pre-warping at frequency w0.
’matched’ Matched pole/zero method.

so FOH and Least Squares appear unimplemented.

similarly, the Control package wiki contains a listing of implementation status, so you can see things that would be useful to get help on:

--

With Regards,

Hamed Shakouri G.

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