Mike Ford wrote:
for. (Some early business-oriented computers, and some calculators
(especially financial ones) did use a system called binary-coded
decimal -- BCD -- to calculate accurately in the sense you mean,
but the fact that they were never widely used and have died out
almost totally
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On 05 November 2004 10:42, Olaf van der Spek wrote:
Mike Ford wrote:
for. (Some early business-oriented computers, and some calculators
(especially financial ones) did use a
From: Chris Shiflett [EMAIL PROTECTED]
To: Jason Wong [EMAIL PROTECTED]; [EMAIL PROTECTED]
Sent: Monday, November 01, 2004 12:22 AM
Subject: Re: [PHP] Simple math failing - PHP Bug?
--- Jason Wong [EMAIL PROTECTED] wrote:
Most computer languages handling floating point calculations
just as poorly
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On 01 November 2004 06:31, Brian T. Allen wrote:
[]
When adding dollar amounts using only whole cents (and excluding the
limitation we've been discussing) you should always
Hi,
OK, I'm totally stumped by this. This should be the simplest math
imaginable (addition and subtraction), but PHP is coming up with the
wrong answer!
I've checked on 3 different machines (all linux) running both PHP 4 and
PHP 5.
Here is the code to duplicate the problem:
On Sun, 31 Oct 2004 21:52:32 -0700, Brian T. Allen [EMAIL PROTECTED]
wrote:
Hi,
OK, I'm totally stumped by this. This should be the simplest math
imaginable (addition and subtraction), but PHP is coming up with the
wrong answer!
[snip]
Is this legitimately bad math on the part of PHP?
On Monday 01 November 2004 04:52, Brian T. Allen wrote:
OK, I'm totally stumped by this. This should be the simplest math
imaginable (addition and subtraction), but PHP is coming up with the
wrong answer!
I've checked on 3 different machines (all linux) running both PHP 4 and
PHP 5.
--- Jason Wong [EMAIL PROTECTED] wrote:
Most computer languages handling floating point calculations
just as poorly. If accuracy is important use the BCMath
functions.
Or use Fortran and double precision. :-)
Still, testing a floating point number as a boolean is one of the worst
ideas I've
Thomas Goyne wrote:
On Sun, 31 Oct 2004 21:52:32 -0700, Brian T. Allen
[EMAIL PROTECTED] wrote:
Hi,
OK, I'm totally stumped by this. This should be the simplest math
imaginable (addition and subtraction), but PHP is coming up with the
wrong answer!
[snip]
Is this legitimately bad math on
Chris Shiflett wrote:
--- Jason Wong [EMAIL PROTECTED] wrote:
Most computer languages handling floating point calculations
just as poorly. If accuracy is important use the BCMath
functions.
Or use Fortran and double precision. :-)
Still, testing a floating point number as a boolean is one
--- Brian T. Allen [EMAIL PROTECTED] wrote:
Well, in fairness, it's one of the worst ideas you've ever heard
because you know of this limitation.
Of course. That wasn't a dig at you or anything - just a comment. You're
free to heed or ignore it.
In reality, using a calculator or something
Chris Shiflett wrote:
--- Brian T. Allen [EMAIL PROTECTED] wrote:
Well, in fairness, it's one of the worst ideas you've ever heard
because you know of this limitation.
Of course. That wasn't a dig at you or anything - just a comment. You're
free to heed or ignore it.
In reality, using a
Brian T. Allen wrote:
Chris Shiflett wrote:
--- Brian T. Allen [EMAIL PROTECTED] wrote:
Well, in fairness, it's one of the worst ideas you've ever heard
because you know of this limitation.
Of course. That wasn't a dig at you or anything - just a comment. You're
free to heed or ignore it.
On Sun, 31 Oct 2004 23:30:53 -0700, Brian T. Allen [EMAIL PROTECTED]
wrote:
No worries, this isn't personal. I just want to explore this limitation
and it's implications for my benefit and the benefit of any that read
this thread later when they are searching for answers to a similar
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