Why is the code not implementing for i==6 value ?

T = zeros(7,12);
for i = 1:7
  for j = 1:12
    if (i==1 || i==7)
      T(i,j) = 1750;
    end
    if i==4 && (j>3 && j<9)
      T(i,j) = 600;
    end
    if (i==2 || i==6) && (j>1 && j<11)
      T(i,j) = (T(i+1,j)+T(i,j+1)+T(i-1,j)+T(i,j-1))/4;
    end
  end
end

Any help would be appreciated.

[Aryaman]

Any help regarding why the code is not implementing at i == 6 value, would be appreciated.

[Image Analyst]

See http://www.mathworks.com/matlabcentral/answers/13205-tutorial-how-to-format-your-question-with-markup. Also learn to use control-I to properly indent your code before pasting it in here (then highlighting and clicking {}Code button). And take Roger's good advice and paste your properly formatted code back here if you still have problems.

[Aryaman]

Dear Sir, thank you for your advice. I am still new to this portal and am learning to make the best use of it. Sorry for the inconvenience.

Answer 1

[Roger Stafford]

I see one apparent error. The condition (i==1 i==7) will never be true. You need an 'or' symbol in it: (i==1 | i==7).

Also notice that when i is equal to 6, T(i+1),j) will not have been set to 1750 as yet, so the expression

   T(i,j) = (T(i+1,j)+T(i,j+1)+T(i-1,j)+T(i,j-1))/4;

may not give you the value you expect. To correct this will require rewriting the routine. Set up your 1750's and 600's first, then do the computation for i==2 | i==6.

[Aryaman]

Thank you Roger,I was able to resolve the problem and proceed further.