I am trying to figure out how to do a kind of scalar matrix multiplication in numpy.

I have 

```
a = array(((1,2,3),(4,5,6)))
b = array((11,12))

```

and i want to do 

```
a op b

```

to result in

```
array(((1*11,2*11,3*11),(4*12,5*12,6*12))

```

right now I am using the following expression

c= a \* array((b, b, b)).transpose()

It seems like there must be a more efficient way of doing this though