While Loops - TextBook Example

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?

Answer 1

[Image Analyst]

Read this http://blogs.mathworks.com/videos/2012/07/03/debugging-in-matlab/ and all will be revealed

Answer 2

[Azzi Abdelmalek]

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

Answer 3

[Matthew Eicholtz]

2^2=4
4^2=16
16^2=256

256>200