Numpy Array – Multiply a constant to all elements of the array
Multiplying a constant to a NumPy array is as easy as multiplying two numbers. To multiply a constant to each and every element of an array, use multiplication arithmetic operator
*. To multiplication operator, pass array and constant as operands as shown below.
b = a * c
a is input array and
c is a constant.
b is the resultant array.
In the following python example, we will multiply a constant
3 to an array
a. The resulting array is stored in
import numpy as np #2D array a = (np.arange(8)*2).reshape(2,4) #print array print("The array\n",a) #multiplying a constant to all the elements of array b = a * 3 print("\nAfter multiplying a constant to all the elements of array\n",b)