stats_stat_innerproduct
(PECL stats >= 1.0.0)
stats_stat_innerproduct — Returns the inner product of two vectors
说明
stats_stat_innerproduct (
array
$arr1
,
array $arr2
) :
float
Returns the inner product of arr1
and arr2
.
参数
-
arr1
-
The first array
-
arr2
-
The second array
返回值
Returns the inner product of arr1
and arr2
, or FALSE
on failure.