Answered
no data in the data browser when i use model linearizer in simulink
See this Question and Answer.

1 year ago | 0

Answered
unable to identify and simulate a function block
Try using a Constant block and set the block parameter "Constant value" to 2*Kr*lfc. Can do the same for the Kr*lfc term as well...

1 year ago | 0

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Answered
How to change the default x-axis unit in a Bode diagram to Hertz?
ctrlpref allows one to change the default units for frequency axis when plotting with bode and bodeplot (among other defaults in...

1 year ago | 2

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Deconvolution of two Bragg Curves
D = dir; D(3).name T1 = readtable(D(3).name); T1.Properties.VariableNames VarName2 = T1.Var2; D(4).name T2 = readtable(D(4...

1 year ago | 0

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Answered
Which exponential option block: fcn vs math function, is more accurate in a Simulink model?
In general u/fc (top path), is not exactly the same as u*(1/fc) (bottom path) in floating point. Example: rng(100) u = rand; ...

1 year ago | 0

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Answered
Why does this special case for associativity of a matrix product with a hadamard product hold true?
Hi Clay, If you're willing to accept (or show, which I think would be straight forward) that, in Matlab, matrix .* row is equal...

1 year ago | 2

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Implementing Z-Transform of -a^n*heaviside(-n-1)
syms a n z Assume is an integer for clarity assume(n,'integer'); To get the expected result, we have to ensure the correct va...

1 year ago | 1

Answered
How to Solve a System of Equations for symfun Objects?
I took a shot. Here's a start, doesn't do any error checking, assumes that there is one valid solution .... syms R(s) e(s) Y(s)...

1 year ago | 0

Question

How to Solve a System of Equations for symfun Objects?
Suppose I have a system of equations: syms R E Y G eq1 = Y == G*E; eq2 = E == R-Y; Solve for Y and E in terms of R sol = so...

1 year ago | 2 answers | 0

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question about dely lines
One can attack this symbolically if the parameters in the problems aren't known. If they are, one can proceed numerically using ...

1 year ago | 0

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How to use the diagonal symbol matrix？
Need to specify the vars explicitly if defined individually syms a1 a2 a3 A = diag([a1,a2,a3]) M = matlabFunction(2*A,'Vars',...

1 year ago | 1

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how can plot the region of convergence?
Since 2024a, radiusregion looks like a reasonable approach to get started. For example, suppose the region of convergence is 0....

1 year ago | 0

Answered
What is default Mu for Vehicle Body 3 DOF block?
As best I can tell, if the [mu_r, mu_f] vector is not specified externally, then the block uses the parameter specified in Nom...

1 year ago | 0

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Answered
Why the filter has no output?
The function filter is only applicable for a discrete-time filter, not an analog filter. If you want to simulate the output from...

1 year ago | 0

Question

Why Do digitalFilter Object Functions Ignore the Filter's SampleRate Property?
Design a low pass filter lpFilt = designfilt('lowpassiir','FilterOrder',8, ... 'PassbandFrequency',35e3,'PassbandRipp...

1 year ago | 1 answer | 0

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answer

Answered
Unable to create Bode plot of H(s)=(s+10)/(s(s+5)^2)
As shown after the edit of @Walter Roberson, the code runs fine here. Do you see the same output after executing the following c...

1 year ago | 0

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How can I make the following heatmap smoother while preserving the contours outlined by the green line?
If you don't need specific features of heatmap, perhaps a pcolor with shading would be useful load DataMe pcolor(flipud(TPP)),...

1 year ago | 0

Answered
In simulink, how can I make a parameter of a simulink block continuously updated during the simulation time by MATLAB function block?
Hi Yeonghoon, One option to try would be the Parameter Writer. Don't know if the particular block and block parameter in questi...

1 year ago | 0

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Answered
Why does this integral of a relatively well behaved function return NaN values?
Hi Ryan, I think that individual terms in the integrand blow up to inf when evaluating in double precision. u = 10^6; % unit c...

1 year ago | 1

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Answered
ECEF 6DOF block - integrator initial conditions
Hi Thomas, Are you referring to 6DOF ECEF (Quaternion)? What exactly do you mean by the "body rate integrator"? Are you loggin...

1 year ago | 0

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Filter Z Transform Manipulation
Define a filiter in Signal Processing Toolbox (SPT) and plot the frequency response fc = 300; fs = 1000; [b,a] = butter(6,fc/...

1 year ago | 0

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discontinuous differential equations using inverse z transform?
It appears the goal is to derive a difference equation from the corresponding, discrete-time, transfer function. Define the tra...

1 year ago | 0

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Problem using variable='z^-1' in Z transform with Z^-1 format
When specifying a tf in with Variable='z', the num and den are interpreted as being coefficients of descending powers of z num=...

1 year ago | 0

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How do you get a symbolic answer for this z transform in MATLAB
With the default symbolic preferences sympref('default'); We have heaviside(0),disp(char(ans)) So the discrete-time unit ste...

1 year ago | 0

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How to convert state space to transfer function.
See this answer for how to represent the state space model in the Control Systems Toolbox.

1 year ago | 0

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Answered
How can I plot a correct fft of cosine wave?
The problem statement is to plot the Fourier Transform of a cosine (cos(2*pi*t)), but sampled with sample frequency of fs=12Hz. ...

1 year ago | 0

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Adding 0 value place holders to string array
s= [ "0, 74, 46, 94" "7, 64, 8" "8, 50, 32, 70" "6, 43" "3, 55, 47"] c = count(s,",") s = arrayfun(@(s,c) join([s,repmat...

1 year ago | 0

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Discussion

Would a General Hold/Release Functionality be a Good Feature for the Symbolic Toolbox?
The int function in the Symbolic Toolbox has a hold/release functionality wherein the expression can be held to delay evaluation...

1 year ago | 1

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Problem with ctrbf() and its answer
Check the doc page ctrbf to see how A_bar etc. are arranged in terms of the uncontrollable and controllable portions.

1 year ago | 0

Answered
Open loop stability: Bode - Pole zero plot mismatch
Use the open-loop system developed by @Arkadiy Turevskiy in this comment sys=zpk([2.4*10^9*j -2.4*10^9*j], [-0.0000001 -11.5*10...

1 year ago | 0