--TEST--
-math_std_dev()/math_variance tests
+math_standard_deviation()/math_variance tests
--FILE--
<?php
$a=array(4, 1, 7);
-$dev=math_std_dev($a);
+$dev=math_standard_deviation($a);
var_dump(sprintf("%2.9f", $dev));
-var_dump(math_std_dev(array()));
+var_dump(math_standard_deviation(array()));
$a=array(5,7,8,10,10);
-var_dump(math_std_dev($a,1));
+var_dump(math_standard_deviation($a,1));
echo "---Variance---\n";
$a=array(5,7,8,10,10);
var_dump(math_variance($a));
--EXPECTF--
string(11) "2.449489743"
-Warning: math_std_dev(): The array has zero elements in %s on line %d
+Warning: math_standard_deviation(): The array has zero elements in %s on line %d
bool(false)
float(2.1213203435596)
---Variance---