Subject:
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Re: IC Floating Point Bug
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 28 Jul 1998 17:48:16 GMT
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Original-From:
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Will <willbain@cs.umt.ANTISPAMedu>
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Reply-To:
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willbain@cs.[Spamcake]umt.edu
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Viewed:
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1118 times
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Rick Moll wrote:
> I've been making use of floating point for the first time on the HB
> and am having problems.
<snip>
I get the same results with version 3.2. Curiously, if I remove the
last digit in the a = 1.570796 statement (or replace it with a zero),
then I get the correct answer. I guess it has something to do with
specifying too many significant digits in a floating point literal.
Very strange.
--Will
, ,
__@_/ \_@__ |/
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~~~~~~~~~ ' ` ~~~~~~~~~~~ ` ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Wendy Parson, Every improvement in communication
Will Bain, makes the bore more terrible.
& Tatoosh --Frank Moore Colby
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Message has 1 Reply:
 | | Re: IC Floating Point Bug
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| (...) If you notice, the constant is PI/2. If you add more significant digits you can even get "a/b" to become 0.5, that is twice the correct answer rather than half of it!!! The reason the bug concerns me so much is that since "a" and "b" print out (...) (26 years ago, 28-Jul-98, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | IC Floating Point Bug
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| I've been making use of floating point for the first time on the HB and am having problems. The following program demonstrates the kinds of bugs I've been encountering: ----(cut here)---...--- int main() { float a; float b; float c; /* This program (...) (26 years ago, 27-Jul-98, to lugnet.robotics.handyboard)
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