stats_stat_innerproduct

(PECL stats >= 1.0.0)

stats_stat_innerproductReturns the inner product of two vectors

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stats_stat_innerproduct ( array $arr1 , array $arr2 ) : float

Returns the inner product of arr1 and arr2.

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arr1

The first array

arr2

The second array

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Returns the inner product of arr1 and arr2, or FALSE on failure.