Paul
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NOMBRE MOYEN DE LIKES
Contribute at least one answer each month for 36 consecutive months
Awarded to Paul on 02 Apr 2023
Accept 20 answers given by other contributors
Awarded to Paul on 15 Nov 2021
100 of your answers have been accepted
Awarded to Paul on 25 May 2021
Answer 1 question that was unanswered for more than 30 days
Awarded to Paul on 24 Oct 2020
Provide your first answer ever to someone else's question
Awarded to Paul on 20 Jul 2017
Solve a problem for the first time
Awarded to Paul on 18 Jan 2013
Feeds
Question
How to Convert a Scalar Struct with Vector Fields to a Vector Struct with Scalar Fields?
I have a scalar struct S with each field a row vector of the same number of elements. S.x = [1 2]; S.y = [10 20]; I want crea...
environ 5 heures il y a | 3 réponses | 0
3
réponsesQuestion
Can hgtransform be Used with a Constant Line Object?
This code runs fine on my machine with 2022a. Generates an error here with 2024a. Didn't see anything in the release notes to su...
6 jours il y a | 1 réponse | 1
0
réponsePlot a vector with a given angle against the y-axis
Something like this? Note that the line won't won't resize if the axes are resized. If you want something like that, you might...
6 jours il y a | 0
reproduces the audio signal after sampling!!!
The Fourier transform of each of those impulse responses can be found as follows. See also this thread for related discussion. ...
6 jours il y a | 0
copy subplots within same figure
Hi William, Use the subplot command as shown below to get the new axes aligned with the old. The legends need to be copyobj'd a...
6 jours il y a | 1
| A accepté
Trying to add Butterworth filter after fft to obtain only some of the original signal.
Hi Alejandro, The input to filter should be the time domain sequence to be filtered, not its Fourier transform. So I guess tha...
7 jours il y a | 0
| A accepté
How to simulate control loop with sustained oscillation
Hi banghyun jo, Describing function analysis relies on the Nyquist plot of the open-loop system, not the closed-loop system. If...
8 jours il y a | 0
Matrix versus Scalar Input Into Functions Using Symbolic Toolbox
Hi Sam, syms x A = [2 4 ; 1 5] ; % Polynomial q(x) = x^2 + 2*x + 15 ; As was noted above by @Voss and @Ayush Anand and @Ni...
9 jours il y a | 1
| A accepté
Simulating linear model, can't understand error
Hi Valeriy, Because the B matrix has one column, the input to the system is a scalar. Hence the U input to lsim should have on...
9 jours il y a | 0
| A accepté
Why does robstab fail for systems with more than two zeros?
Hi Suleyman, Generally speaking, it's best to avoid "transfer function algebra." Instead, use model construction and interconne...
11 jours il y a | 0
| A accepté
How to put existing figures in one figure together?
If subplot layout is acceptable, then ... % open the fig files in two new figures f1 = openfig('fig1.fig','Invisible'); f2 = ...
11 jours il y a | 1
The mathematical expressions resulting from two different symbolic computations are significantly different.
Case 2 can be much simplified. Were you expecting the simplified result to be returned? clear syms a b X Y c Z K M m l; X=sy...
12 jours il y a | 1
| A accepté
Question
When Should Generalized eig() Solver be Used for Ordinary eig() Problems?
Consider the following matrix: z = sqrt(sym(2)); z1 = sqrt(sym(3)); Asym = [-z, -z^2/z1; z1, z] It has a repeated eigenvalue...
12 jours il y a | 1 réponse | 0
1
réponseHow do I extract one point from a piecewise function?
Hi Allie, If M_xy and M_xz are sym objects, like so syms t M_xy = piecewise(t < 0, 0, t > 0, t); M_xz = piecewise(t < 0, 0, ...
13 jours il y a | 0
Simulink presenting a convergence error
Setting the fixed-step solver to ode8 seems to work pretty well for the problem shown in the question with a fixed step of 0.01....
15 jours il y a | 1
| A accepté
symmetric solutions of linear matrix equations
Here's an alternative using mldivide, \ that arrives at the same result for this particular problem. Is it effectively the same ...
18 jours il y a | 0
Convolution with a time shifted box function
Hi Nghi, Why should the output of system remain at 1 for t > 2.5? For t > 2.5, the input is 0 and so we'd expect the output to...
18 jours il y a | 0
| A accepté
in DOA, ifft weighting vector
Hi 종영, Based on the very limited information provided I took an educated guess. %% array parameters c = 3e8; f = 3e8; % nomi...
18 jours il y a | 1
| A accepté
How to convert Matlab figures into subplots without having to redraw the plots again in the command window?
Use copyobj to copy the axes of interest to a new figure, then arrange with subplot figure plot(rand(3)) ax0 = gca; hnew =...
18 jours il y a | 0
| A accepté
How to correctly apply dsp.FIRFilter
The input to fir() should be a column vector. N = 40; fs = 20 * 10 ^ 9; freq = [0, 1 * 10 ^ 9, 2 * 10 ^ 9, 3 * 10 ^ 9, 5 * 10...
19 jours il y a | 0
| A accepté
Filter audio file with FIR filter
Check out filter or filtfilt for starters ...
19 jours il y a | 0
how to multiply every single element in a matrix to entire of another matrix?
Here's one option to store each result in a cell array that's the same size as x x = [100,500,900,1300,1700; 120,600,1080,...
19 jours il y a | 1
| A accepté
Set elements in center of matrix into NaN values
Not sure what diameter means in this context. But, if it can be defined in terms of row and column indices, then maybe something...
19 jours il y a | 0
Dictionary with key-value pair of string ---> string array?
Hi cyclist, Do you mean mapping to the string array contained inside the cell? keySet = ["Jan";"Feb";"Mar"]; valueSet = {["Ne...
19 jours il y a | 1
| A accepté
how to use a variable in finite field
How about something along these lines? y = @(a) gf(3,8)*a; y(1) y(2)
19 jours il y a | 0
Convolution using non-constant kernel?
Hi goc3, filter provides significant speedup rng(42); nr = 100000; A = rand(nr,1); B = rand(nr,1); w = 100; % window lengt...
20 jours il y a | 0
| A accepté
Fourier Analysis - Magnitude spectrum and phase shift
Hi Stefan, %% Triangle wave Fourier approximation + Phase & Magnitude Spectra %% Setting Maximum Harmonic to be used (importan...
20 jours il y a | 0
| A accepté
Operations and differentiation with symmatrix in MATLAB... possible bug?
Hi dominik, I'm not sure what Problem 1 is refering to. I think Problem 2 can be explained as follows: clear all n = 2; A =...
21 jours il y a | 0
Dynamically Make a Variable Name
Hi Summer, One option would be to use load with an output argument, which will put all of the variables the .mat file in a stru...
23 jours il y a | 1
| A accepté
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