Programming Question
Aahz Maruch
aahz at netcom.com
Tue Sep 21 10:00:03 EDT 1999
In article <37E7809E.A871480C at noreaster.cit.cornell.edu>,
Matthew Hirsch <hirsch at noreaster.cit.cornell.edu> wrote:
>
>I'm still a little confused about precision and roundoff error. Can
>someone please explain to me why this loop isn't working. I'm trying to
>get a printout of all 81 numbers between -4.0 and 4.0 in 0.1
>increments. The problem is that in the final iteration, a's value is
>becoming greater than 4. It shows up as something like
>4.0000000000000000000xxxxx. What can I do to get around this problem?
>I would greatly appreciate anybody's help.
You've already gotten good answers. If you want more info, look up
"IEEE 754", which is the floating point standard. (Not everything uses
IEEE-754, but it's a good starting point.)
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