Can't get my while-loop to work

Question

Felicia Adamsson 2022-5-9

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https://ww2.mathworks.cn/matlabcentral/answers/1715045-can-t-get-my-while-loop-to-work

回答： Harsha Kalavakolu 2022-5-12

Hi, I have a problem with my while-loop. I want to add 1000 to m_tank until T_max_saffle is below 100. After that I want to extract how much the new value of m_tank_saffle is. What am I doing wrong?

Thanks!

antal_tank_saffle=[1]

while T_max_saffle > 100

m_tank_saffle=m_tank+1000;

antal_tank_saffle=[antal_tank_saffle [m_tank_saffle]]

end

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Torsten 2022-5-9

编辑：Torsten 2022-5-9

If you don't make changes to T_max_saffle in the while loop for that it decreases to a value <= 100, you will never exit the while loop.

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Answer 1

Harsha Kalavakolu 2022-5-12

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https://ww2.mathworks.cn/matlabcentral/answers/1715045-can-t-get-my-while-loop-to-work#answer_962400

Hi Felicia

As I can understand from your code you are using T_max_saffle > 100 as your loop exiting/Termination condition but it is not getting updated anywhere inside the loop.

If T_max_saffle is >100 from the beginning then your code execution does not enter the while loop, else If T_max_saffle< 100 code execution enters the loop and never exists which means you are stuck in an infinite loop.

So, you have to update T_max_saffle for every iteration based upon your requirement to end the loop.

Hope it helps