Carroll, Barry schreef: > In "Learning to Program", look at "The Raw Materials", "Real > Numbers". The first sentence, "These are fractions" is technically > incorrect, but incomplete. While it's true that fractions (i.e. > rational numbers) are real numbers, there are far more real numbers > that cannot be expressed as a ratio of two integers. Hence the name > "Irrational Numbers". The square root of two is the prime example. > (Sorry, can't do the math symbol in Plain Text.) > > You might say something like, "Fractions are examples of real > numbers."
Notwithstanding my other mail, it might be better to use another term. Alan, you already use the name 'floating point numbers' in that section; I think it's a bit better to always refer to those numbers by that name, and mention 'real numbers' as an alternative name. The opposite of the current situation more or less actually. -- If I have been able to see further, it was only because I stood on the shoulders of giants. -- Isaac Newton Roel Schroeven _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
