Outer Product

Problem

Compute the outer product of vectors a (length m) and b (length n).

The result is an m x n matrix C with C[i][j] = a[i] * b[j].

Hint

Every row of the result is a scaled copy of b.

case 1

in: [[1,2],[3,4]]

expected: [[3,4],[6,8]]

case 2

in: [[1,0],[2,3,4]]

expected: [[2,3,4],[0,0,0]]

case 3

in: [[2,-1],[1,1]]

expected: [[2,2],[-1,-1]]

case 4

in: [[0,5],[7,8]]

expected: [[0,0],[35,40]]

Starter codePython

def outer_product(a, b):
    # Your code here
    pass

4 test cases · run your code against them in the editor