I am having this error "Index in position 2 is invalid. Array indices must be positive integers or logical values." in my file. Can you please help me in resolving this.

I am very new to matlab and am having some syntax errors. The code is due for submission in a few days. I will be very grateful for solution. . . .

Answer 1

[MUHAMMED IRFAN]

In MATLAB, array indexing starts at 1(not zero).

Inside the function Duffusion() you have a number of for loops in each if-else cases.

    for i = 1:(length(x)-1)                 % Iterate over tri diagonal
        L(i,i) = 2/(delta^2)+SigmaA/D;   % Diagonal Terms
        L(i,i+1) = -1/(delta^2);         % Above diagonal term
        L(i,i-1) = -1/(delta^2);         % Below diagonal term
    end
    

In each of these for loops, you iterate the value of i from 1 to something. But when i=1, you have L(i,i-1) as L(1,0) which is invalid in MATLAB. And thus the error.

Answer 2

[Andualem]

how to fix this problem in mimo landas(:,j) = diag(V);

[Image Analyst]

How is your post an Answer to @Sanchit Sharma?

You should probably start your own question after you read this:

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