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Bug #51124 if we divide 1.48/15000 answer suppose to be 0.0000986666 but wrong ans coming
Submitted: 2010-02-23 13:15 UTC Modified: 2010-02-24 09:06 UTC
From: davindergsi at yahoo dot com Assigned:
Status: Not a bug Package: Math related
PHP Version: 6SVN-2010-02-23 (snap) OS: Linux
Private report: No CVE-ID: None
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 [2010-02-23 13:15 UTC] davindergsi at yahoo dot com
Description:
------------
if we divide 1.48/15000 answer is suppose to be 0.0000986666 but wrong ans coming



Reproduce code:
---------------
1.48/15000



Expected result:
----------------
0.00009866666

Actual result:
--------------
9.8666666666667E-5

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 [2010-02-23 13:37 UTC] pajoye@php.net
.
 [2010-02-24 09:05 UTC] davindergsi at yahoo dot com
we can get the correct results

if we use number_format function
 [2010-02-24 09:06 UTC] rasmus@php.net
Floating point values have a limited precision. Hence a value might 
not have the same string representation after any processing. That also
includes writing a floating point value in your script and directly 
printing it without any mathematical operations.

If you would like to know more about "floats" and what IEEE
754 is, read this:
http://docs.sun.com/source/806-3568/ncg_goldberg.html
 
Thank you for your interest in PHP.


 
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