Respondida
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...

24 días hace | 0

| aceptada

Respondida
Filter audio file with FIR filter
Check out filter or filtfilt for starters ...

24 días hace | 0

Respondida
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,...

24 días hace | 1

| aceptada

Respondida
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...

24 días hace | 0

Respondida
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...

24 días hace | 1

| aceptada

Respondida
how to use a variable in finite field
How about something along these lines? y = @(a) gf(3,8)*a; y(1) y(2)

24 días hace | 0

Respondida
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...

24 días hace | 0

| aceptada

Respondida
Fourier Analysis - Magnitude spectrum and phase shift
Hi Stefan, %% Triangle wave Fourier approximation + Phase & Magnitude Spectra %% Setting Maximum Harmonic to be used (importan...

25 días hace | 0

| aceptada

Respondida
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 =...

26 días hace | 0

Respondida
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...

28 días hace | 1

| aceptada

Respondida
How to integrate acceleration into displacement data correctly?
The integration seems correct based on the implied initial conditions. Fs = 1000; % sampling freq. Ts = 1 / Fs; % sampling per...

28 días hace | 0

Respondida
Expansion in a Fourier Series
% Problem_1 the Fourier series of the function f(x) % f(x)=0 -pi < x < 0 % f(x)=1 0 < x < pi %syms x n pi % pi=3.14; ...

28 días hace | 0

Respondida
Plot Specific Points on Nichols Chart
Hi Amaan, The input to nichols has to be an a dynamic system model. So either you have to convert AbsN and AngN to such a mode...

28 días hace | 0

| aceptada

Pregunta

Answers Not Running Code?
Anyone else having trouble running code on Answers? I see it trying to run with 2024a, but get a message "Something went wrong....

30 días hace | 1 respuesta | 0

1

respuesta

Respondida
Calculating a Fourier series with MATLAB manually problem
I don't think anything is wrong with the code in the Question, at least based on visual inspection (though it's always best to u...

alrededor de 1 mes hace | 0

| aceptada

Respondida
Fourier Series Curve Fitting and giving its coefficient with respect to eqaution
Hi OLuxanna, The code is attempting to implement the complex exponential Fourier series using the C_n coefficients. Let's look...

alrededor de 1 mes hace | 0

Respondida
How can I use allmargin() with non-unity feedback?
Hi Erik, What's the loop transfer function, L(s), from which one could compute the stability margins (having already determined...

alrededor de 1 mes hace | 1

| aceptada

Respondida
How to use exp^s for a transfer function in matlab
Models with internal delays are implemented in state space form. Ts = 1/2000; s = tf('s'); Gd = exp(-1.5*s*Ts); With Gd on...

alrededor de 1 mes hace | 0

Respondida
Is there a way to compute the n-th symbolic derivative of a function where n is also symbolic?
Hi Matt, I don't think so, at least not using diff syms f(x) x syms n positive real integer % Define the function for which...

alrededor de 1 mes hace | 1

| aceptada

Respondida
gridureal samples does not match the sampled system.
Hi Mohammad, I confess that I can't explain how dss is implementing this uncertain, descriptor system. I'm particularly curious...

alrededor de 1 mes hace | 0

| aceptada

Respondida
cosd() giving similar value for different angles
data = load('LatLong.txt'); speed_km = data(:, 1); latitude = data(:, 2); longitude = data(:, 3); The latitude is quite s...

alrededor de 2 meses hace | 0

Respondida
Understanding FFT in MATLAB
Hi Janee, Speaking only to the Matlab side of this question, why would it expected that the rows of u1 and up be the same? Each...

alrededor de 2 meses hace | 0

Respondida
Typo in the nufft (R2024a) documentation?
Hi Ana, Yes, either the plot command was intended for X or the ylabel is wrong. In the context of that example, I suspect they ...

alrededor de 2 meses hace | 0

| aceptada

Pregunta

How Does mldivide Work for Full, Square, Full Rank, Triangular Matrix?
How does mldivide work when the input matrix A is full, square, full rank, and triangular? The doc page just say it uses a trian...

alrededor de 2 meses hace | 0 respuestas | 0

0

respuestas

Respondida
Plot Piecewise function graph
This line y(i) = 1./log(2)*sin(x(i)); is incorrect. The order of operations for multiplication and division is that they ar...

alrededor de 2 meses hace | 0

Respondida
How to use parameter callback to parameterize mask workspace?
What happens if you just enter T = 1/f; in the Initialization section and leave the f_callback blank, or delete it altogether?...

alrededor de 2 meses hace | 0

Respondida
Inverse of a symmetric matrix consisting of submatrices is desired.
I wasn't going to post this as it didn't seem like a useful answer, but, since @Torsten raised the idea of using the block matri...

alrededor de 2 meses hace | 0

Respondida
Assumptions are not being considered in symbolic math.
Hi Nick The issue is that the code is using linsolve, which doesn't know anything about the assumptions on the m_i. Generate a...

alrededor de 2 meses hace | 0

Respondida
piecewise function Fourier seriers
Hi KUN, In the context of the Fourier transform, I'm not sure that the assumption on t makes sense, at least not in the context...

alrededor de 2 meses hace | 0

Respondida
want to differentiate 1+c*exp(t)/1-exp(t) which is 2*c*exp(t)/(1-exp(t))^2 and then return it to it's original form by integration using int(), understand rewrite(tanh,"exp")
Hi Joseph, I think you got the correct result, though not using what might be considered best practices syms f c t y(t) y ypri...

2 meses hace | 1

| aceptada