How to apply element wise operation in three matrices

I have three matrices A, B, C (10 * 600 each). I want to learn to apply an operation (A[i][j] - C[i][j])/(B[i][j] - C[i][j]) on each element and store it in another matrix D. I'm new to this stuff. Any insights would be helpful.

Answer 1

[Guillaume]

That is covered in the 2nd chapter of the Getting started guide (under matrix and array):

 D = (A - C) ./ (B - C);

I would recommend that you go through all the chapters. This is really basic matlab usage.

[Kartikeya Singh Gour]

Thank you for a quick reply. I've been using this method for the whole time. I'm loading the data from two mat files. I get this error "Reference to non-existent field 'Z' "

P = load('new1.mat');

Q = load('new2.mat');

R = load('new3.mat');

A = P.X;

B = Q.Y;

C = R.Z;

D = (A - C)./(B-C);

[Stephen23]

The mat file new3.mat does not contain a field Z. If field Z does not exist, then of course you cannot access it. Perhaps the fieldname is lowercase?

[Guillaume]

So, the actual question has nothing to do at all with what was asked! "I have three matrices A, B, C. I want to learn to apply an operation ...". Turns out that you don't have C and the problem is completely unrelated to how to calculate D.

As Stephen said, your error is due to the fact that new3.mat obviously does not have a Z variable. It's not something we can do anything about. Use a mat file that does have a Z variable or use the name of a variable that is actually in new3.mat