Change from 1 to -1

Hi to all , I have a Matrix A = ones(5). How i can change the element value one by one to -1.

example A = [1,1,1]

A = [-1,1,1] A = [-1,-1,1] A = [-1,-1,-1]

But I want to do it for 5 X 5 matrix

Regards

Answer 1

[James Tursa]

Do you mean iteratively in a loop? E.g., changing elements one at a time in column order:

n = numel(A);
for k=1:n
    A(k) = -1;
    % Use A here
end

[Offroad Jeep]

Thanks for help, that great. You have put a foundation stone in my simulation...... Thanks again and will like if we work together....

[Offroad Jeep]

Can you please check the attached problem.

http://www.mathworks.com/matlabcentral/answers/contributors/4899830-4-x-4/questions?s_tid=gn_mlc_ans_myq