Question

How to plot 3D surface using excel data

I am having 3 columns of data points x,y,x in the attached excel sheet. I want to plot a 3d surface plot but not able to get it....

2 months ago | 1 answer | 0

Question

Inverse of higher order matrix

Hello there, I am trying to get inverse of a 80,000 order matrix but the calculation is taking too much time. Is there any fast...

4 months ago | 2 answers | 0

Question

Accuracy of results in symbolic variable and double

Hello there, I have wriiten a code to genrate some generalized matrix and now I am performing some matrix operations like invers...

11 months ago | 1 answer | 1

Question

How to increas the speed of the program?

I made a matrix attached herewith. The program is taking too much time for even smaller values for example c=2(fixed), g=1(fixed...

12 months ago | 0 answers | 0

Question

How to find inverse of a 608*608 matrix fast?

I am trying to find the inverse of Q00{5} in the attached c=2_g=1_l=5.mat file. I have tried inv() function as well as backslash...

12 months ago | 1 answer | 0

Question

The code keep giving the error of 'Empty sym: 0-by-2' .

The %error line is giving empty values. The values of c,g,l,st,nt,L are arbitrary and for example can be considered (3,1,1,1,1,1...

1 year ago | 0 answers | 0

Question

How to assign matrix value to a symbolic variable inside a matrix

The error is in the line in %...I got that the error is coming because of the unmatched dimension of left hand side and right ha...

1 year ago | 1 answer | 0

Question

How to create the upper diagonal block matrix in a specific form.

c = input('c '); g = input('g '); syms Lambda_n M = cell(c+1,1); a_t = min([1:c+1;repmat(c-g+1,1,c+1)]); for i = 1:c+...

1 year ago | 1 answer | 0

Question

How to specify enties of a block diagonal matrix

c = input('c '); g = input('g '); M = cell(c+1,1); a_t = min([1:c+1;repmat(c-g,1,c+1)]); for i = 1:c+1 MCell = repmat({...

1 year ago | 0 answers | 0

Question

How to create diagonal block matrix

I am trying to write code for the above matrix. I am very new to MATLAB programming. If anyone can help me in someway, It wi...

1 year ago | 1 answer | 0