[Tutor] exercise (while loop)

Mark Lawrence breamoreboy at yahoo.co.uk
Tue Apr 1 11:09:34 CEST 2014

```On 01/04/2014 02:47, Danny Yoo wrote:
>
> On Mar 31, 2014 6:22 PM, "Scott W Dunning" <scott.w.d at cox.net
> <mailto:scott.w.d at cox.net>> wrote:
>  >
>  > I’m working on a few exercises and I’m a little stuck on this one.
>  >
>  > This is what the book has but it just gives me an endless loop.
>  >
>  > def square_root(a, eps=1e-6):
>  >         while True:
>  >                 print x
>  >                 y = (x + a/x) / 2
>  >                 if abs(y-x) < epsilon:
>  >                         break
>  >
>  > round(square_root(9))
>
> Hi Scott,
>
>
> Can you explain what 'x', 'y' are in this function?
>

And the difference between eps and epsilon while (ouch) we're at it.

--
My fellow Pythonistas, ask not what our language can do for you, ask
what you can do for our language.

Mark Lawrence

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