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Issue with Laplace Transform for Exponential Functions in MATLAB
Hi FFU, Let's take a look at these one by one. syms t real f1 = 2^(-t); I've never seen a Laplace transform table that inclu...
en dag ago | 0
| accepted
Magnitude Plot Incorrect Frequency
Recheck the conversion from rad/sec to Hz in the plot command for the magnitude of the spectrum
4 dagar ago | 1
| accepted
Question
Why Doesn't doc Show Links to Other Uses of the Same Function?
Using 2024a with local documentation .... I just realized that when I open a doc page for a function that I no longer get the b...
4 dagar ago | 0 answers | 0
0
answersPlotting Resistance vs Frequency Response
Looks like the model also need an Input Perturbation to define the input to the transfer function. Should be on the same menu as...
5 dagar ago | 0
| accepted
Filter cascade with raised cosine filter and half-band filter
Fs = 20e3; Fp = 15e3; rc = rcosdesign(0.35, 5, 2, 'sqrt'); Fs2 = 4*Fs; % Sample rate Fp2 = Fp; % Passband edge Fh2 = ...
6 dagar ago | 0
| accepted
vpasolve finds no solutions except the null solution
This code exceeds the run time limit here, and is taking forever running on my computer, so don't know what it produces. If sol...
9 dagar ago | 2
Subtraction of two symbolic matrices gives error "Array sizes must match" when the sizes are the same
Hi Jacob, Start of code rng(3) L=randi([1 10],3,3,4,4); N=randi([1 10],3,4); syms xvec [4,1] real syms xmat [4,4] real og...
9 dagar ago | 1
c2d Tustin not matching analytical method
Hi Alborz, %% Filter Specs Ts = 0.01; zeta = 1; wn_rps = 30 *2*pi; %% C2D (tustin) s = tf('s'); tf_cont = wn_rps^2 / (s...
10 dagar ago | 0
| accepted
Modify function_handle in Simulink matlab function
Assuming the ultimate goal is to have nonConOption as an input to the MatlabFunction block, I got this to work in the MatlabFunc...
10 dagar ago | 0
| accepted
How can I import variables from a Simulink Model Workspace to my MATLAB workspace?
Hi Hansi, Use get_param to create a handle the model workspace, and then loop over the variables in the model workspace and ass...
11 dagar ago | 0
| accepted
Inverse fourier transfer of cos function with time shift
Hi Matt, Keep in mind that you are inherently dealing with a windowed cosine, x1(t) = cos(4*pi*t)*w(t), where w(t) = 1 for 0 <=...
12 dagar ago | 0
Simulink Matlabfunction does not support Global Optimization toolbox
The MatlabFunction block always generates code, even in Normal mode. One option that may be workable is to implement your optim...
13 dagar ago | 1
| accepted
Switch Block: Can we disable Integer Round off option
Saturation block might be useful ...
14 dagar ago | 0
One zero is missing in the result of c2d function uses 'matche'
sysc = tf(11,[1,1,0]) sysd=c2d(sysc,.1,'matched'); zpk(sysd) Is the addtional zero in the textbook also at z = -1?
16 dagar ago | 0
My Step Response plot from Matlab does not match the one from Simulink
Hi Javier, You might want to investigate the step size control options in Simulink. The plot looks a bit jagged, which suggests...
17 dagar ago | 0
Stability Margins for MIMO Feedback Loop
Load in the data load linsys format short e The open loop system has a pole just to the right of the real axis. Maybe this is...
20 dagar ago | 0
can anyone explain the difference between fft and freqz commands?
freqz is a general purpose function for computing the frequency response of a discrete-time filter. The filter can have an infin...
21 dagar ago | 0
Question
Incorrect Substitution with subs() from Workspace Variables?
syms alpha s H t system = 1/(s + 1/alpha); y = ilaplace(1/s * (1-exp(-s*H)) * system) Define specific values for alpha and H ...
22 dagar ago | 1 answer | 0
1
answerIFFT results in wrong frequency
The inverse Discrete Fourier Transform, as implemented by ifft, maps a signal from discrete frequency to discrete time. Each ele...
23 dagar ago | 0
| accepted
How can I use the function coeffs() as the input to the function tf()?
Unless there are reasons to use syms other then to compute the polynomials, it's probably better and easier to avoid syms altoge...
24 dagar ago | 0
Array of transfer function (nxn) when multplied with an array of constant nx1 give issue
Example matrices rng(100); A = rand(3); M = rand(3,1); s = tf('s'); T = inv(s*eye(3)-A) H = T*M Your are correct that each...
25 dagar ago | 1
| accepted
Question
Should mldivide Return a Solution for Square, Rank-Deficient, but Consistent Set of Linear Equations?
load lindata A and b define a linear system of equations Ax = b. A is 12 x 12 with rank rank(A) But the linear equations are...
26 dagar ago | 2 answers | 0
2
answersSolve equilibrium equations in MATLAB for a quadruped robot
Problem parameters W = [1; 1; 10]; x1=50;y1=31.65;z1=16.09; x2=sym(44.68);y2=sym(-27.26);z2=sym(-24.34); x3=-4.72;y3=-24.4;z...
26 dagar ago | 0
How can I make the Nichols chart background grid more prominent when using Nicholsplot? (Too faint.)
You can change the linewidth of the grid lines plotoptions = nicholsoptions; plotoptions.GridColor = [0.0 0.0 0.0]; plotoptio...
29 dagar ago | 0
Question
Why Must the TimeZone be Specified for datetime when the Time Zone is Included in the DateString?
Suppose I have a date string fu = "Mon Mar 3 12:20:40 EST 2025" Converting to datetime causes an error because the TimeZone in...
ungefär en månad ago | 1 answer | 0
1
answerHow to create a table with data from multiple tables using function or for loop
Hi Kristine, It will be easier to process if the date for each table is actually stored in the data structure itself, rather th...
ungefär en månad ago | 0
Deconvolution creates new peaks
Hi Riccardo, It might be simpler to just use the twosided option of tfestimate Also, the input data is single, might want to c...
ungefär en månad ago | 2
| accepted
Issue with Time-Domain Shifting Using Fourier Shift Property in MATLAB
Hi Jason, I think the fundamental issue is that one shouldn't expect that Result = 0. Suppose we have a continuous time signal...
ungefär en månad ago | 0
Model variable/jittered clock to sample a signal in Simulink - how does variable sample times work?
Because the Hit Scheduler can accept vector inputs, I suppose the simplest approach would be to create the jittered sample times...
ungefär en månad ago | 0
I am working on an assignment for class I can't figure out how to round the values in the table to two decimal places. Can anyone point out what I am missing?
It appears that formating numerics in a table is not same as the format used for display in the command window. Do you have to ...
ungefär 2 månader ago | 0
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