[Tutor] Picking Nits in "Learning to Program"
Roel Schroeven
rschroev_nospam_ml at fastmail.fm
Sat Feb 17 02:47:56 CET 2007
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
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