Need help with FOR loop with 3 indexes

I need help with FOR loop with three indexes (i, j, k). Each index varies from 0 to 100 in 10 increments. However these 3 indexes need to add to 100 therefore ignoring any combinations which do not add to 100. There are 66 combinations which add to 100. Basically I just want to loop through all these 66 combinations.

For example i = 0, j = 10, k = 90 i = 0, j = 20, k = 80 i = 0, j = 30, k = 70 and so on.

Any suggestions would be greatly appreciated.

Answer 1

[Andrei Bobrov]

is the same, without loop

[k2,i2,j2] = meshgrid(0:10:100);
s2 = [i2(:) j2(:) k2(:)];
a2 = s2(sum(s2,2)==100,:);

Answer 2

[Jan]

Another loop version - but I've voted the MESHGRID approach of abobroff.

a = [];
for i = 0:10:100
  for j = 0:10:100
    k = 100 - i - j;
    if k >= 0
      a = [a; i, j ,k];
    else
      break;
    end
  end
end

Answer 3

[Paulo Silva]

a=[];
for i=0:10:100
    for j=0:10:100
        for k=0:10:100
            s=i+j+k;
            if s==100
                a=[a; i j k];
            end
        end
    end
end

The code gives you the variable a that contains the values of i j k that satisfy your condition.