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<?php $A = array(9,4,-3,-10); $mean = array_sum($A) / count($A); foreach($A as $key => $i) { $devs[$key] = pow($num - $mean, 2); print_r($devs[$key]); } ?>
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $num in /in/v7ApU on line 6 0 Warning: Undefined variable $num in /in/v7ApU on line 6 0 Warning: Undefined variable $num in /in/v7ApU on line 6 0 Warning: Undefined variable $num in /in/v7ApU on line 6 0

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