Need help plotting to different plots in the same figure from a while loop. The program calculates the results for a square root using the Newton method but it doesn't plot it.

a= input('Enter a positive number:');
ti= input('Percent of tolerance wanted:');

if a<0
  disp('Number bigger than cero');
elseif ti<0
  ti=ti*100;
end
k=1;
x=a/2; 
t=101;

figure; hold on
while t>ti
  k=k+1;                    %Interaction numbers
  i=x;                      %Safes x
  x=((x+(a/x))/2);          %Estimates square root
  t=((abs(x-i)/x)*100);     %Tolerance

    subplot(2,1,1); plot(k,x);
    subplot(2,1,2); plot(k,t);
end

disp (['The square root is ', num2str(a), ' after ', num2str(k), ' interactions is:', num2str(x)]);

Answer 1

[G A]

...
figure;
clf 
while t>ti
  k=k+1;                    %Interaction numbers
  i=x;                      %Safes x
  x=((x+(a/x))/2);          %Estimates square root
  t=((abs(x-i)/x)*100);     %Tolerance
subplot(2,1,1);
hold on
plot(k,x,'.');
subplot(2,1,2); 
hold on
plot(k,t,'.');
end
hold off
disp (['The square root is ', num2str(a), ' after ', num2str(k), ' interactions is:', num2str(x)]);

[Leyda Gonzalez]

Thank you so much! You're a life saver, it works perfectly.