Answer 1

When a python list is multiplied by an integer, the elements inside the list will just repeat itself depending on the multiplier.

Example:
• [2] * 10
• [2, 2, 2, 2, 2, 2, 2, 2, 2, 2]

• [21, 65, 32] * 3
• [21, 65, 32, 21, 65, 32, 21, 65, 32]

But in numpy, when an array is multiplied by an integer (or float, numbers in general), each elements inside the array are multiplied by that number.

Example
• [2] * 10
• [20]

• [2, 4, 6] * 10
• [20, 40, 60]