How can I save the number of iterations in while loop?

I'm implementing a code to solve linear algebraic system with Gauss-Seidel algorithm. I need to save the number of iterations that are done by the while loop in the iterative process. how can i do?

Answer 1

[Star Strider]

Set up a counter variable.

Example:

count = 0;
while -CONDITION-
    -DO CALCULATIONS-
    -UPDATE CONDITION VARIABLE-
    count = count + 1;
end

[Arianna Serpi]

thank you very much for your answer, i've done this and it works but i have to repete the "while" loop for differents values from i=1:n ( like the following code) and i want to store the number of iterations for each i. How can i do?

for i=1:10

 count=0

 while CONDITION

    CALCULATIONS

    UPDATE CONDITION VARIABLE

    count=count+1

 end

end

[Star Strider]

My pleasure.

That simply requires you to subscript the ‘count’ variable:

for i=1:10
    count(i) = 0;
    while CONDITION
        CALCULATIONS
        UPDATE CONDITION VARIABLE
        count(i) = count(i)+1
    end
end

Now you have values for ‘count’ for all values of ‘i’.

[Arianna Serpi]

thank you very much, i'm new in matlab and you have been very helpful for me

[Star Strider]

As always, my pleasure.