## Iterations in matlab.

on 30 Jan 2012

### Jan Simon (view profile)

Hi,

I have done a coding in matlab and this is the point where I am hanging,can anyone please help me out?

I have an equation

```P(i,j)=Q(i,j)+R(i,j)/2;
```

Where P,Q,R are all matrices of dim=4x4.

Values of R(i,j) is given to us.

Now,initially assuming Q-matrix to be a zero matrix (all the elements are 0), the P(i,j) matrix is calculated. My, problem is that, once I calculate the P-matrix, I want to assign its value to the Q-matrix (a new Q-matrix instead of the initial zero matrix) to calculate a new P(i,j)-matrix. In this way I want to run the iterations for 4-times.

Thanking You!

Jan Simon

### Jan Simon (view profile)

on 30 Jan 2012

Please post the existing code and explain, which problems occur. To help you out, it is required to know the problem.

Walter Roberson

### Walter Roberson (view profile)

on 30 Jan 2012

Last known code was completely non-functional: <http://www.mathworks.com/matlabcentral/answers/27367-matrix-iterative-solution-using-matlab>

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### Jan Simon (view profile)

on 30 Jan 2012

Do you mean something like this:

```Q = zeros(4, 4);
R = magic(4);
```
```for k = 1:4
P = Q + R;
Q = P;
end
```

?

Pranjal Pathak

### Pranjal Pathak (view profile)

on 31 Jan 2012

Thanks Simon Sir!
Yeah! your hint help me out.

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