Questions tagged [process-control]

Questions about interfacing with other processes, in particular RunProcess and related functions.

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FeedBack linearization and stabilization error

Consider nonlinear system: \begin{cases} \dot{x_1}=x_4+u \\ \dot{x_2}=-x_2+\frac{(\tanh(k \cdot x_5)+1)}{2}+U(t)+u \\ \dot{x_3}=-x_3+\dot{f} \\ \dot{x_4}=-x_4+x_3 \cdot s(t) \\ \dot{x_5}=-x_5+x_3 \...
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44 views

Comparison of NDSolve and Asymptotic Output Tracking results: Problem identified

My question is a continuation of the topic: Asymptotic Output Tracking: Code Issues Edit: Take system of ODE for example: $\begin{cases} \frac{dx}{dt}=H \cdot \alpha \sin(\omega t)+\alpha \omega \cos(\...
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163 views

Asymptotic Output Tracking: Code Issues

My question is a continuation of the topic Which way of solving from nonlinear control to choose?, and in the future I plan to expand this question. I want to try to apply this article https://www....
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Which way of solving from nonlinear control to choose?

I have a nonlinear system: \begin{cases} x'=f(x)+u \\ y=f(x) \end{cases} where $f(x)$ - gradient of some one-extremal function (for example $f=e^{-(x)^2}$), i.e. $\frac{df}{dx}$. I want to construct a ...
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Send plain text out through a COM port (such as Labview, MATlab, Python or even a terminal emulator)

We have purchased a pump. And we would like to control the pump through Mathematica. The furnished has explained to us: ...
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1answer
51 views

Changing the quality of the transient process in a nonlinear system (in Mathematica)

I urgently need advice and help. I have a system of differential equations like this: $\begin{cases} \frac{dx}{dt} == y[t] \cdot \alpha \cdot sin(\omega t) + \frac{d}{dt}(\alpha \cdot sin(\omega t)) ...
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54 views

Aligning Conditional Controls in Manipulate

Consider the following code ...
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676 views

RunProcess and SystemShell - some built in commands don't work?

I'm running a zsh shell: $SystemShell = "/bin/zsh" My problem is that some basic system-level commands don't work in ...
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486 views

How to respond to password prompt with StartProcess?

Title says it all so let me show it on a Git example on Windows. Let's say you have your git executable on the system PATH: ...
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281 views

How to send an “end-of-file” marker to a process object's standard input?

On a Unix-like system I can do this: $ cat some text some text ^D The cat utility will echo back everything I send to it ...
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Does RunProcess work on Chinese Windows?

I am asking for feedback from people running Mathematica 10.0.x or 10.1.0 on Chinese versions of Windows. Does the following command work or does it give $Failed? ...