On Wed, Jul 28, 2010 at 8:03 PM, Dave Angel <da...@ieee.org> wrote: > > > David Hutto wrote: >> >> <snip> >> I'll probably ending up reading something about it later in the book, >> but as a quick question, why does: >> >> >>>>> >>>>> 5e18 =5**18 >>>>> >> >> False >> >>>>> >>>>> int(5e18) =int(5**18) >>>>> >> >> False >> >>>>> >>>>> 1.01325e5 =1.01325**5 >>>>> >> >> False >> >> > > The 999e44 notation is intended to be similar to scientific notation, > where 44 is the exponent, in base 10. > > So redoing your equalities: > > 5e18 == 5*(10**18) > int(5e18) == int(5 * 10**18) > 1.01325e5 == 1.01325 * 10**5 > > The extra parens in the first case, and the extra spaces in the others, are > just for readability. It'd be just as correct to say: > 1.01325e5 == 1.01325*10**5 > > DaveA > > >
Already done! And 5.3*10**18 or 5.2613095377e+18 is the appropriate answer from a quick google search that resulted in the rounded 5.3e18. So the book apparently left out the 5.3*, and just gave 10**18. Thanks for your help, I think this is solved. _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
