Storing Maximum Value & corresponding variable in iterative process.

max1 = [-inf 0 0 0];
for p=1:3
    for q=1:6
        for z=1:100
            if p+q<6;

              a=2*p;
              b=5*q;
              k=z*z;
              x=k*4+1;
              k1 = a*x+b*k+1; 

              if k1 > 4, 
                  max(1,z) = k1;
                  max(2,z) = p;
                  max(3,z) = q;
                  max(4,z) = z; end 
              else 
                  end
          end
      end
  end

Here there are total three loops used for p,q,z. I want to store value pf k1 which is more than 4 & corresponding p,q,z. i am facing problem that while loop is executed values of variable max are getting replaced in every loop. I have to gather data having k1>4 and correponding p,q,z

Answer 1

[Jan]

The minimal possible value of k1 is 16, when I set the minimal values for p, q, z in the formula k1 = a*x+b*k+1. Therefore you can omit the check for > 4. And all possible combinations with p+q<6 are wanted as result? This could be achieve much easier.

The indentation of your code is confusing due to the "end" which is append behinde the line.

You pre-allocate the variable max1, but in the code max is assigned, but it leads to problems frequently, when built-in functions are shadowed.

[Shantanu K]

okay...max1 is mistake of mine.....then how to proceed. This is not actual problem....i have made replication to make it simple. Logic which i will get here will be implemented in main program......in that program its not so easy to tell about minimum value......so how to proceed then?