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Add variable names to figure legends
Hi Ganesh, Add a second argument to the legend command % what you have figure h = plot(rand(3)); legend(h) % what you want...

4 mesi fa | 0

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How to combine argument validation with varargin
My understanding from reading Avoid Using varargin for Repeating Arguments is that putting varargin into a Repeating arguments b...

4 mesi fa | 3

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why the two split-step fourier methods using fft and ifft is equivalent ?
Let's take a simplified view of the loops in code1 and code2, and renaming the variables appropriately. Also, because of the way...

4 mesi fa | 0

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Risposto
Convert discrete sys to continuous sys using delays using linear-fractional transformation (LFT)
Hi Joan, I reviewed the link from the julia site and I think I know what they're doing. But I'm not 100% sure because it seems...

4 mesi fa | 1

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Matlab step() from Simulink dataset
Based on the picture of the Simulink model .... sys = linearize('SIM_lab5'); step(sys)

4 mesi fa | 0

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Im trying to replicate a simulink design, i dont know what the blocks y and u are in the library browser.
Those both look like To Workspace blocks used for logging data to the Matlab workspace for inspection/processing/etc. after the ...

4 mesi fa | 0

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when do I need use fftshift?
Hi Daniel, Let's plot the first function Bx = 10; A = sqrt(log(2))/(2*pi*Bx); fs = 500; %sampling frequency dt = 1/fs; %...

4 mesi fa | 1

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I want to find the root locus of polynomial.
Running the code m_s = 5; % Mass of the spring m_r = 68; % Mass of the rotor k_r = 5.45e5; % Spring constant of the roto...

4 mesi fa | 0

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how to express operators in symbolic algebra
I'm not sure how define a function of a function. But this seems to work, at least for this simple case: syms x t syms q(t) v(...

4 mesi fa | 0

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How can I fix this problem?
The variable x is defined at the top of the code to have 4 rows. In the loop that calls fsolve, x0 is defined with four elements...

4 mesi fa | 0

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Fourier Series for odd integers only
Hi Tashanda, I see a couple of issues with the code Though not an error, it would be clearer if you specified the variable of ...

4 mesi fa | 0

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How can I extract the x and y values of the phase- and magnitude graph of a .fig file plotted with bodeplot() or bode()?
sys = tf(1,[1 1]); bode(sys); hf = gcf; hax = hf.Children hax(2).Children % the first child is the phase plot hax(2).Child...

4 mesi fa | 0

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Risposto
Error using fft Invalid data type.
Hi Koray, It looks like you have a signal f(t) that is defined over the interval 0 <= t <= 1.5 as: syms t; K = 20; %35; Chan...

4 mesi fa | 0

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I want to get the value of x using the Matlab code "Out = fzero(@(x) (A-sqrt(2*pi*H*E*x*((x/E)+(x/F)^1/G))), 1000000)", but not getting the correct answer. Could you help me?
Seems to work here just fine. Why do you think you're not getting the correct answer? A = 20627000; E = 210000000000; F = 122...

4 mesi fa | 0

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D/A converter delay transfer function
That doesn't look like the typical D/A converter ..... But, assuming T is negative you can simulate the delay of -T/2 with a Tr...

4 mesi fa | 0

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Cannot plot negative frequencies on Nichols with recent MATLAB versions
Hi lepolonais03. Test case shows that only positive frequencies are considered, as you've obeserved. sys = zpk(1,[2 3],4); w=...

4 mesi fa | 0

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Risposto
how to create a look up table to use in simulink from a 2D array of doubles
Assuming your 40x2 array is stored in a workspace varaiable named data. Use the 1D Lookup Table. Set the Table Data parameter ...

4 mesi fa | 0

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Risposto
I want to know Block Diagram for "rlocus(G)" and how they calculate the overshoot of the graph.
(1) Yes, rlocus(G) fits the architecture you have. If "I can see overshoot" means that you're clicking on a branch on the root ...

4 mesi fa | 0

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pzmap and bode do not return zeros for all specified outputs
Hi Marcel, There isn't really a problem. If you want to get the pzmap of each individual transfer function of MIMO system, then...

4 mesi fa | 0

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why my discretized PID controller behaves differently than my continuous (unfiltered) PID?
Hi Israel, Let's take a look at the problem analytically. Define the plant and controller s = tf('s'); P = tf(1/(s^2 + s)); ...

4 mesi fa | 0

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Is there anyway to increase the calculation speed of this sqrt integral2 without loosing accuracy?
The iterated method works much faster as compared to auto (which I assume goes to tiled). Unclear why iterated integral2 is slow...

4 mesi fa | 0

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How does isstable(sys) and step response plot in all toolsbox on MATLAB work?
In the Control System Toolbox, isstable returns a logical value of 1 (true) for stability of a dynamic system if: In continuo...

5 mesi fa | 0

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Risposto
Simulink integrator block reset and integrate at single time step
Hi Jaewon, If I understand correctly, the short answer is no. The whole purpose of using the iuntegrator reset to is step the ...

5 mesi fa | 0

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Risposto
The signal generated by the chirp function has amplitude values that are not 1 in some parts of its time-domain diagram
The sampling frequency in t2 isn't high enough to catch (or get close to) all of the peaks at the higer frequencies. Here's the ...

5 mesi fa | 0

Risposto
constructing discrete time system
Hi Junhwi, The short answer is that the sample time, st, is too large for discretizing Cdr before forming the closed-loop syste...

5 mesi fa | 0

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Trying to enter a transfer function in simulink (tauD s + 1)
Hi Wouter, As you've found, that transfer function can't be implemented in Simulink in a Transfer Fcn block. Depending on the ...

5 mesi fa | 0

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Risposto
simulink tout sample time and to workspace block
By default, the tout variable is updated at every major time step of the solver. The defaults, including the variable name and w...

5 mesi fa | 0

Risposto
Matlab Solve and simplify functions not working
Hi Brittany, Run the code: foot_forces f21_sol One option is to use vpa to convert to a VPA number. However, the result is s...

5 mesi fa | 1

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Domanda

simplify() with dirac and All = true Doesn't Work?
Why does the second call to simpify cause an error? Is that a bug? syms x real simplify(dirac(x)) % works simplify(dirac(x),...

5 mesi fa | 0 risposte | 0

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Risposto
How do I express my numerator in the transfer function block (SIMULINK) if the s variable is in the exponent?
Hi Kaitlyn, What does 10*exp(-2.6*s) represent in the time domain. Or more simply, what does exp(-2.6*s) represent in the time ...

5 mesi fa | 0