Doc->Bug #70954 [Opn->Nab]: Wrong Calculation

Edit report at https://bugs.php.net/bug.php?id=70954&edit=1 ID: 70954 Updated by: requinix@php.net Reported by: sukram230799 at outlook dot com Summary: Wrong Calculation -Status: Open +Status: Not a bug -Type: Documentation Problem +Type: Bug Package: *General Issues Operating System: Window 10 PHP Version: 5.6.15 Block user comment: N Private report: N New Comment: 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://www.floating-point-gui.de/ Thank you for your interest in PHP. Previous Comments: ------------------------------------------------------------------------ [2015-11-22 15:08:52] sukram230799 at outlook dot com Description: ------------ --- From manual page: http://www.php.net/index --- PHP is calculating wrong or inacurate. Test script: --------------- echo(272.19-273.15); Expected result: ---------------- -0.96 Actual result: -------------- -0.95999999999998 ------------------------------------------------------------------------ -- Edit this bug report at https://bugs.php.net/bug.php?id=70954&edit=1