How to get the product of two matrix?

Question

I Have this code:

import numpy as np 

a = np.array([1,2,3])
b = np.array([4,5,6])

And I would like to get from a and b this matrix:

c = np.array([4,10,18])

I mean

c = np.array([a0*b0, a1*b1, a2*b2])

without a for loop. How can I do this?

Answer 1

numpy arrays support vectorized operators, so a * b will return your required array.

a = np.array([1, 2, 3])
b = np.array([4, 5, 6])
print(a*b)
# [ 4 10 18]