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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....

2年以上前 | 1

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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...

2年以上前 | 0

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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...

2年以上前 | 0

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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...

2年以上前 | 1

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質問

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...

2年以上前 | 1 件の回答 | 0

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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...

2年以上前 | 0

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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...

2年以上前 | 1

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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...

2年以上前 | 1

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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...

2年以上前 | 1

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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...

2年以上前 | 0

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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...

2年以上前 | 1

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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...

2年以上前 | 1

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

2年以上前 | 1

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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 ...

2年以上前 | 2

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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...

2年以上前 | 0

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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...

2年以上前 | 0

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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...

2年以上前 | 1

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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 ...

3年弱前 | 0

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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; ...

3年弱前 | 1

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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...

3年弱前 | 0

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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. ...

3年弱前 | 0

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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...

3年弱前 | 1

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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...

3年弱前 | 0

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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...

3年弱前 | 1

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

3年弱前 | 0

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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...

3年弱前 | 0

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I'm getting weird units while double-integrating accelerometer data to extract displacement
Hi @Nathaniel, I only see one issue with the code, but I have some other thoughts for consideration. Read in the data warning...

3年弱前 | 0

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Decreasing digits of answer
Try: vpa(grad,6)

3年弱前 | 1

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freqz() not behaving as expected?
The b and a inputs to freqz are the coefficients in ascending powers of z^-1. So this case b = 1; a = [1 0 0 0]; really means...

3年弱前 | 1

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include all rows matrix in []
One way .... Create example data Sis.a = 1; Sis = repmat(Sis,73,1); z = rand(5668,73); The code [Sis.z] = cell2struct(num2...

3年弱前 | 2