note 97557 added to language.types.float

From: Date: Mon, 26 Apr 2010 06:48:48 +0000
Subject: note 97557 added to language.types.float
Groups: php.notes 
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Calculations involving float types become inaccurate when it deals with numbers with more than approximately 8 digits long where ever the decimal point is. This is because of how 32bit floats are commonly stored in memory. This means if you rely on float types while working with tiny fractions or large numbers, your calculations can end up between tiny fractions to several trillion off. This usually won't matter when converting to binary memory storage form and editing many applications' float memory addresses directly, or dealing with smaller length numbers. But if you're working with larger scale numbers and decimals, it's best to switch to working with other types: http://www.php.net/manual/en/refs.math.php ---- Server IP: 69.147.83.197 Probable Submitter: 66.25.188.193 ---- Manual Page -- http://www.php.net/manual/en/language.types.float.php Edit -- https://master.php.net/note/edit/97557 Del: integrated -- https://master.php.net/note/delete/97557/integrated Del: useless -- https://master.php.net/note/delete/97557/useless Del: bad code -- https://master.php.net/note/delete/97557/bad+code Del: spam -- https://master.php.net/note/delete/97557/spam Del: non-english -- https://master.php.net/note/delete/97557/non-english Del: in docs -- https://master.php.net/note/delete/97557/in+docs Del: other reasons-- https://master.php.net/note/delete/97557 Reject -- https://master.php.net/note/reject/97557 Search -- https://master.php.net/manage/user-notes.php

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