Change from 1 to -1

Question

Offroad Jeep 2016-5-16

评论： Offroad Jeep 2016-5-17

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 2016-5-16

编辑：James Tursa 2016-5-16

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 2016-5-16

编辑：Offroad Jeep 2016-5-16

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 2016-5-17

Can you please check the attached problem.