need help with loop

hello guys, i'm very new to matlab and currently facing some problems in loop coding.

so firstly i want to make a loop of a matrix i don't how much its size will be.

so i've an equation for a node like phi(i, j)= {some constant}*{(phi(i-1, j-1)-2*phi(i, j-1)+phi(i+1, j-1)} Where i is an number that shows my node location in X-Y plane and j shows my node location in Z plane. its kind of taylor series problem i think.

i want this loop to run till i get phi(i, j)= phi(i, j-1) and store all the values in a matrix.(for storing i and j can also work as raw and column)

hopefully you guys can give me some tips.

Thank You

[Sam Chak]

@Yash Raj Haldaniya, Can give an example using a simple matrix like the following?

M = [2 1; 4 3]

M =

3 1

4 2

[Yash Raj Haldaniya]

i'm attaching what i've done so far so you can get an idea. please dont mind the messy code im very new in this.

Answer 1

[Bharat Chandra Mukkavalli]

Hi,

I went through the code but unfortunately I couldn't understand what you are trying to do.

Please explain in detail what it is you are trying to achieve.

I have changed the loop to a nested loop and modified the if condition (from "==" to "isequal()"), since the original code was throwing errors.

Please find the attached updated code file.

Hope it is helpful!