Réponse apportée
simulation issue about Scope
Hi wenchao zhang, The Constant block, by default, has a constant sample time. For the model shown, constant sample time means t...

plus de 2 ans il y a | 0

Réponse apportée
How to declare a function as extrinsic and execute it in Simulink through Matlab Function block
Try using coder.extrinsic to declare the wrapper .m function as extrinsic in the Matlab Function block and call the java functio...

plus de 2 ans il y a | 1

| A accepté

Réponse apportée
Create a local system of equations function from a set of anonymous functions
One approach: equations = {'@(x1,x2)x1.^2+x2-6','@(x1,x2)-2.5.*x1+x2.^2-2'};%Set your equations N = numel(equations); f = ce...

plus de 2 ans il y a | 0

Réponse apportée
How to remove struct fields of a specific type
The function class can be used in a loop over the fieldnames to identify the fields to be removed with rmfield. s.w = int32(0);...

plus de 2 ans il y a | 1

| A accepté

Réponse apportée
Understanding the following step in MATLAB
The elements in symbols range from 0 - 3, but Matlab uses 1-based indexing, i.e. the indices int0 constellation can only be 1-4....

plus de 2 ans il y a | 1

Réponse apportée
Can't tell if exprnd is working correctly
Hi Umberto, I modified the code so that the actual figure of merit that is computed is the difference between the running sampl...

plus de 2 ans il y a | 0

Réponse apportée
Andrews plot function for multivariate control chart limits UCL and LCL
Brute force approach ... Use symbolic for illustration syms theta p = 5; A = reshape([sin((1:p)*theta) ; cos((1:p)*theta)],1...

plus de 2 ans il y a | 0

| A accepté

Réponse apportée
varagin with original var names
inputname can be used to return the name of the variable in the calling workspace as a character vector, at least for simple cal...

plus de 2 ans il y a | 1

| A accepté

Question


Is Matlab consistently and correctly handling symbolic expressions that include a dirac function applied at a point of discontinuity?
Is Matlab consistently and correctly handling symbolic expressions that include a dirac function applied at a point of discontin...

plus de 2 ans il y a | 1 réponse | 0

1

réponse

Réponse apportée
Matlab's numeric solution to det of Matrix is incorrect
Hi ThanosST, Are you sure the expressions in B are entered correctly? Asking because it sure looks like L = 3.9407 is the solu...

plus de 2 ans il y a | 0

Réponse apportée
Cauchy integral theorem vs. integral formula
Hi Luqman, The numerical integration is using a step size that is proably too large to capture the rapid variation in the integ...

plus de 2 ans il y a | 1

| A accepté

Réponse apportée
Integral and inverse integral
The attachment convolution.jpg is confusing. Equation (15) defines Pf(x) as a convolution. But the unnumbered equation in the ri...

plus de 2 ans il y a | 1

| A accepté

Réponse apportée
Euler's identity with angle in degrees
If the input is given in degrees, consider writing your own function using cosd and sind for accurate results at the 90 deg inte...

plus de 2 ans il y a | 1

Réponse apportée
MATLAB code to SIMULINK block ?
One way to get started may be to wrap the ultrasonic sensor code in a function, and call that function from a Simulink MatlabFun...

plus de 2 ans il y a | 0

Réponse apportée
Convolution of function on a non symmetric axis using 'conv'
Hi MMG1 It looks like the code is using the convolution sum to approximate a convolution integral. Is that correct? If so, my c...

plus de 2 ans il y a | 1

Réponse apportée
How to Convert a 3D Matrix into Cell Array of Desire Dimension
A = rand(2,100,500); % example data C = squeeze(num2cell(A,[1 2])); % create cell array whos C isequal(cat(3,C{:}),A) % veri...

presque 3 ans il y a | 1

| A accepté

Réponse apportée
Matlab giving error for tall array assignment
The code doesn't define a variable named grid. It's getting confused with the function grid

presque 3 ans il y a | 1

Réponse apportée
How to calculate a double integral with a subfunction?
Hi Dewen Yu, As the error message indicated, the function pattern_element needs to use element-wise math operations to compute ...

presque 3 ans il y a | 2

Réponse apportée
polar motion seems to be reversely applied to the function "ecef2eci."
Hi Jeongin Yun, Quoting from the question, with emphasis added: "In order to transformate coordinate eci to ecef, it should ro...

presque 3 ans il y a | 0

Réponse apportée
Insert number in structure array
Hi Chad, If possible, consider changing the structure of your data to arrays that can be indexed, instead of field names that c...

presque 3 ans il y a | 0

| A accepté

Réponse apportée
how to set a lowpass filter in simulink?
Hi moh mor, The error message from the Lowpass Filter block sounds bit misleading. If you look on the doc page, it says that t...

presque 3 ans il y a | 1

Réponse apportée
cannot use `lsim()` function properly
Hi 嘉伟, Here is the plant model M = 1.5; m = 0.5; l = 10; g = 9.8; %% state space A = [0 1 0 0; 0 0 m*g/M 0; 0 0 0 1; 0 0 ...

presque 3 ans il y a | 0

| A accepté

Réponse apportée
Fourier transform of circular convolution is not equal to multiplication of two Fourier transforms?
Hi Khiem, Consider the following to see the difference between circular and linear convolution. N = 32; ...

presque 3 ans il y a | 1

| A accepté

Réponse apportée
How to do error approximation of a weibull fit in matlab
The Weibull distribution is that of a continuous random variable. Are you trying to compare its fitted pdf with the plot returne...

presque 3 ans il y a | 0

Réponse apportée
I wonder why the following code is not able to give a valid output? My objective is to solve a system of simultaneous ODEs with dirac comb func.
Hi Mridupawan, It would be helpful if you posted the error that you're getting or otherwise show exactly what the problem is. ...

presque 3 ans il y a | 0

Réponse apportée
Problem with Kalman Filter and state space model
Hi Tobias, It looks like the state space model is defined in continuous time, but the Kalman filter is a discrete-time implemen...

presque 3 ans il y a | 1

| A accepté

Réponse apportée
How to calculate real probability of data
"is there a way I can get the probability values in a matrix of the same dimenions as A." The number of bins in the histogram w...

presque 3 ans il y a | 0

| A accepté

Réponse apportée
Changing initial conditions of a Simulink model when simulating using a for loop
I think you can do what you want using Model Operating points. Here's a doc page to get started. Why do you want to do this: in...

presque 3 ans il y a | 1

Réponse apportée
programmatically collect sim errors
Using the sim command, simulation warnings are captured in the SimulationMetaData.ExecutionInfo of the output of the sim command...

presque 3 ans il y a | 0

| A accepté

Réponse apportée
imufilter results seem incorrect
I think the gyro data is in deg/sec, but the imufilter wants that input in rad/sec. Check those units. data = readtable('data.c...

presque 3 ans il y a | 0

| A accepté

Charger plus