numpy.outer

numpy.outer(a, b, out=None)

Compute the outer product of two vectors.

Given two vectors a and b of length M and N, respectively, the outer product [1] is:

[[a_0*b_0  a_0*b_1 ... a_0*b_{N-1} ]
 [a_1*b_0    .
 [ ...          .
 [a_{M-1}*b_0            a_{M-1}*b_{N-1} ]]

Parameters:

a(M,) array_like