I have two arrays. 

```
Array1 
[[-0.23,  0.11],  
[0.29, -0.37]]

Array2 
([5.28, 4.40])

```

I want to do sum the multiplication of one array by the other

Example 

* sum(5.28 \*-0.23 + 4.40 \* 0.11) = ind1
* sum(5.28 \*-0.29 + 4.40 \* -0.37) = ind2

df

```
 -0.7304
 -3.1592

```