i want to plot the graph for while loop but the graph was blank

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Fakrullah eiman Noor 2023-1-21

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1898050-i-want-to-plot-the-graph-for-while-loop-but-the-graph-was-blank

编辑： VBBV 2023-1-21

d=1;

while X>=t

fprintf('Value of T0 at t=%d is %d\n',t,T0);

%compute f(t,T0)

ftT0= f(t,T0);

%compute newTo

newT0= T0+h.*ftT0;

%for printing

rsl(d,:)=[t T0 ftT0 newT0];

%update iteration

d=d+1;

%update t

t= t+h;

%update T0

T0= newT0;

end

plot(t,T0)

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Fakrullah eiman Noor 2023-1-21

the value of X will be input by user

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回答（1 个）

VBBV 2023-1-21

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1898050-i-want-to-plot-the-graph-for-while-loop-but-the-graph-was-blank#answer_1153290

在 MATLAB Online 中打开

      t(d)= t+h;
    %update T0
    T0(d)= newT0;

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VBBV 2023-1-21

To plot a graph, use a vector of values for the variables by indexing them in a loop

VBBV 2023-1-21

编辑：VBBV 2023-1-21

在 MATLAB Online 中打开

ftT0= f(t(d),T0(d));
  %compute newTo
  newT0= T0(d)+h.*ftT0;
  %for printing
  rsl(d,:)=[t(d) T0(d) ftT0 newT0];
  %update iteration
  d=d+1;
  %update t
  t(d)= t(d)+h;
  %update T0
  T0(d)= newT0;

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