hello professionals ..i have attached my code plz suggest me why it is not displaying value of kp2 and e as it is not entering the loop

kp2=rand(10); 
  e=rand(10);
  for i=1:length(50)
      r=e(i)*dp-kp1*kp2(i)*(p-1);
  if r==1
  break;
  end
    end

       here dp , kp1 and p are previously calculated.in this code value come in fraction and it doesnot enter the for if loop...plz suggest me code

[Image Analyst]

This was answered in your duplicate question: http://www.mathworks.com/matlabcentral/answers/71840#answer_82074 It was because you have "for i=1:length(50)" instead of "for i=1:50"