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Umar


Last seen: Today Active since 2024

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Community volunteer, like to help people by making difference in their lives

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Python, C++, C, Java, C#, Javascript, R, MATLAB, SQL, HTML, CSS, Arduino, Shell, Assembly, VHDL, Visual Basic
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Answered
formula for the electric charge stored accros a Schottky junction
Hi @Jaisson, I've gone through the SPICE Diode documentation and looked into the junction charge formula issue you raised. Yo...

14 hours ago | 1

Answered
Fixed-point precision and scaling in HDL OFDM Tx/Rx cause frame errors compared to MATLAB double implementation.
Hi @Alperen,I've read through your post and I think you're on exactly the right track suspecting fixed-point quantization as the...

1 day ago | 0

| accepted

Answered
imuSensor loadparams unable to load NoiseType from json File
Hi @Brendan, I went through your post about the NoiseType parameter issue with imuSensor's loadparams function, and I complet...

4 days ago | 0

Answered
Error in close calculation and plotting
Hi @Nikita,I've identified the issue with your code. The error occurs because detrend_correl_07_slope_1 is a table, not a regula...

8 days ago | 0

Answered
How do I add summation to a symbolic equation in order to integrate across set bounds?
Hi @Mara, I think you're actually overthinking this a bit. The numerical approach you've already started is the right way to go...

9 days ago | 1

Answered
GPU Acceleration Options for Large-Scale Simscape Microgrid Simulation
Hi @Liyang, I've looked into your questions thoroughly and want to give you a complete picture of what's possible after doing...

10 days ago | 0

| accepted

Answered
GigE Cam works with 2024B but not 2025B
Hi @Yuchen, I looked into your GigE camera detection issue with MATLAB 2025B and this appears to be a version-specific regres...

13 days ago | 1

| accepted

Answered
How can I calculate the Variance Inflation Factor (VIF) for a linear regression model
Hi @Ojaswi, I looked into the MATLAB Central thread you shared about calculating VIF for your DOE models. The issues you ran ...

14 days ago | 0

| accepted

Solved


Combined Ages 2 - Symmetric, n ≥ 3
Following on <http://www.mathworks.com/matlabcentral/cody/problems/42382-combined-ages-1-symmetric-n-3 Combined Ages 2>, you wil...

21 days ago

Solved


Combined Ages 1 - Symmetric, n = 3
You have probably seen the common riddle wherein combined ages are provided and you must determine the individual ages. For exam...

21 days ago

Solved


Linear system of equations
Solve the system of equations in three variables.

21 days ago

Solved


System of equations
Find a solution to a system of equations represented by a |n| by |n+1| matrix. For instance, [ 2 0 4; => 2*x = 4 ...

21 days ago

Solved


linear least squares fitting
Inputs: * |f|: cell-array of function handles * |x|: column vector of |x| values * |y|: column vector of |y| values, same l...

21 days ago

Solved


Column norms of a matrix
Given a matrix M, return a vector y such that for each k y(k)=norm(M(:,k)) (y(k) is the Euclidean norm of the k-th col...

21 days ago

Answered
how to plot these 2 column data into a curve on oxy plane
Hi @晓通, I saw your question about plotting 2-column data as a curve on the Oxy plane. I've tested a solution with your matlab...

21 days ago | 2

| accepted

Answered
arduino BLE send/receive simulink problem
@Paul, After going through some extensive research online into this issue, it looks like you're dealing with a genuine Simulink ...

23 days ago | 0

| accepted

Answered
How do I turn this Simulink model with Gain Control to Pole Placement?
@Farzad, your state-space block outputs displacement and velocity but not acceleration, so you need to compute acceleration usin...

26 days ago | 0

Answered
matlab -batch on SLURM prints errors when HOME is shared across many nodes
Hi @Lang, So I did a deep dive on that MATLAB Connector error you're seeing on your SLURM cluster, and yeah, this is definite...

27 days ago | 0

| accepted

Answered
interp1() returns a plot with empty sections
Hi @Ata, I took a look at your code and screenshot of Excel file. The problem is that your t vector goes beyond the ran...

1 month ago | 0

Answered
How to import the SPICE model of MOSFET into MATLAB?
Hi @lin, Good news - I found exactly what you're looking for! MATLAB has built-in functionality to import SPICE MOSFET models...

1 month ago | 0

Answered
How can I make use of the full window size when zooming into very tall images?
@RalfW, I tested your code with an image saved in my MATLAB Drive and can confirm exactly what you're describing. The zoomed ...

1 month ago | 0

| accepted

Answered
How do I use MATLAB's actxserver function to pass an array to LABVIEW
@新云 , Your empty outputs are happening because of a fundamental mismatch in how MATLAB and LabVIEW handle arrays through the ...

1 month ago | 0

Solved


Permute diagonal and antidiagonal
Permute diagonal and antidiagonal For example [1 2 3;4 5 6;7 8 9] -> [3 2 1;4 5 6;9 8 7] WITHOUT diag function (and variable n...

1 month ago

Solved


Rotate input square matrix 90 degrees CCW without rot90
Rotate input matrix (which will be square) 90 degrees counter-clockwise without using rot90,flipud,fliplr, or flipdim (or eval)....

1 month ago

Solved


Removing rows from a matrix is easy - but what about inserting rows?
Assume A is a 5-by-5 matrix. A([2,4],:) = [] is a quick way to remove rows 2 and 4. Can you find a quick way to insert rows into...

1 month ago

Solved


Operate on matrices of unequal, yet similar, size
You may want to add a vector to a matrix, implying that the vector is added to each column of the matrix. Or multiply a 3x4x5 ma...

1 month ago

Solved


Matrix with different incremental runs
Given a vector of positive integers a = [ 3 2 4 ]; create the matrix where the *i* th column contains the vector *1:a(i)...

1 month ago

Solved


Some Assembly Required
The input to this function is a matrix of real numbers. Your job is to assemble the rows of the matrix into one large row that ...

1 month ago

Answered
Incorrect addition of noise in the example: ('lte/NPDSCHBlockErrorRateExample')
Hi @Karine, You've raised a really interesting point here, and I think your observation about the missing sqrt(12/128) factor...

1 month ago | 0

Answered
Showing the value on the x-axis as a legend the moment the curve deviates from the x-axis
@Erkan, I have gone through your comments and understood what you're trying to accomplish! Based on your figure, you want to mar...

1 month ago | 0

| accepted

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