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Jiali


Last seen: 1 day ago

22 total contributions since 2014

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Question


how to realize inverse chirp z-transform when the length of input and output are different?
Dear all, I would like to realize the inverse chirp z-transform when the the length of input and output vector are differ...

3 days ago | 0 answers | 0

0

answers

Question


questions about 2D chirped Z-transform (CZT)
Dear Community, I have a 2D image in K-space and need to transform back to Cartesian coordinate. But When I use the 2D...

10 days ago | 0 answers | 0

0

answers

Question


Why the coordinate doesn't make sense after rotation matrix (rotx)?
Hello, I got confused about the rotation matrix results. I want to rotate the structure around the z-axis with theta firs...

4 months ago | 1 answer | 0

1

answer

Question


why interp2 report "input grid is not a valid meshgrid" since input grid is generated by meshgrid?
Dear Community, I need to do a 2D interpolation for a matrix data, but when I use the interp2, the function report error "...

4 months ago | 2 answers | 0

2

answers

Question


Question about 3D rotation
I tried to rotate a sequence of points in the below sequence: first-axis: Z, rotation angle is 45 degree; second-axis: X, rotat...

4 months ago | 0 answers | 0

0

answers

Question


how to compute the components of fields on the sloped plane
I have compute all the components of electromagnetic fields on the normal plane (Ex, Ey, Ez, Hx,Hy,Hz). Thn I project all fields...

6 months ago | 0 answers | 0

0

answers

Answered
how to solve 1D heat equation by Crank-Nicolson method
Dear Darova, The below code is What I figure out. Hopefully it helps someone. u=zeros(length(X),nstep+1); u(...

7 months ago | 1

Answered
how to solve 1D heat equation by Crank-Nicolson method
I figure out that the boundary is dealt with incorrectly. After re-deriving the matrix to include the boundary value, I finally ...

7 months ago | 1

| accepted

Question


how to solve 1D heat equation by Crank-Nicolson method
I need to solve a 1D heat equation by Crank-Nicolson method . The tempeture on both ends of the interval is given as the fixed ...

8 months ago | 2 answers | 0

2

answers

Question


how to plot the 3D graph
I build the 3D grid and form a function based on the grid. I would like to know how to display the data shown in the below figur...

1 year ago | 1 answer | 0

1

answer

Question


How to compute the ratio of the insection point in each grid on the boundary of a real structure
In the Cartesian grid, the real structures are pixelized into the staircase approximation. To reduce the staircase error, the ef...

1 year ago | 2 answers | 0

2

answers

Answered
how to use the row&column indices returned by find to control array element in matrix way
I appreciate your quick help. It really helps me to solve the whole issue.

1 year ago | 0

Question


how to use the row&column indices returned by find to control array element in matrix way
I have a logical matrix (X) that are generated when the element meets certain conditions in the original raw matrix (data) and u...

1 year ago | 2 answers | 0

2

answers

Answered
Finding rows with the closest values in two matrices matlab
I find one useful code in the file exchange called Inter-Point Distance Matrix. http://www.mathworks.com/matlabcentral/fileexcha...

5 years ago | 0

Answered
Finding rows with the closest values in two matrices matlab
this method doesn't work because all the numeric data are generated from some images. Since the images are not always same/align...

5 years ago | 0

| accepted

Question


Finding rows with the closest values in two matrices matlab
I have two matrices with the same size [n,2]. One is the control matrix A and another is the test matrix B. In general, Numbers ...

5 years ago | 5 answers | 0

5

answers

Question


How to adjust GUI size in remote desktop session
I know the GUI size is right for my desktop in the lab and GUI size is proportional. However, when I remotely log in, GUI size i...

5 years ago | 0 answers | 0

0

answers

Question


How to show axes when I build a GUI Scatter plot
how to show axes and minortick when I build a GUI Scatter plot? By using the following code, no axes are shown in GUI. Please h...

5 years ago | 1 answer | 0

1

answer

Question


How to combine numeric contents inside a cell array with another numeric matrix
I want to combine numeric contents inside a cell array with another numeric matrix. The following is a simple demo code. %%...

5 years ago | 1 answer | 0

1

answer

Question


GUI how to display table data into figure
My problem is: I try to read some data from excel file, first display as table data inside Matlab GUI, then I want to display da...

6 years ago | 2 answers | 0

2

answers

Question


how to match with random cell name with varied format
I have a series of cell array XXXX-20-0266-3.dat XXXX-10-01-12_03.03.03 AM.dat XXXX-10-01-12_01.03.03 PM.dat XXXX-...

6 years ago | 1 answer | 0

1

answer

Question


reading mixed format csv data with empty value '-'
The data is mixed formatted. I just list the float number parts to show you my problem. 1 1 100.3 -45000 -0.23 0.2555 600...

6 years ago | 1 answer | 0

1

answer