While Loops - TextBook Example

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Maroulator
Maroulator 2014-8-9
回答： Matthew Eicholtz 2014-8-9
I have the following code from my textbook:
ires=2;
while ires<=200
ires=ires^2;
end
I estimate that the above code will run 14 times and give me a final value of 225 for variable ires. When I run the code in MatLab, however, I get 15 runs and a final value of 256 for variable ires. Could anyone provide some insight as to why this may be the case?

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Image Analyst
Image Analyst 2014-8-9

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Azzi Abdelmalek
Azzi Abdelmalek 2014-8-9
You can check how many times your while loop runs
ires=2;
k=0;
while ires<=200
k=k+1
ires=ires^2;
end
In your case k=3 and not 14
Matthew Eicholtz
Matthew Eicholtz 2014-8-9
2^2=4
4^2=16
16^2=256
256>200

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