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.

Question

Leyda Gonzalez 2012-3-9

0
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/31664-need-help-plotting-to-different-plots-in-the-same-figure-from-a-while-loop-the-program-calculates-t

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)]);

0 个评论
显示 -2更早的评论隐藏 -2更早的评论

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

G A 2012-3-9

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/31664-need-help-plotting-to-different-plots-in-the-same-figure-from-a-while-loop-the-program-calculates-t#answer_40197

在 MATLAB Online 中打开

...
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)]);