NumPy left_shift Code When inputs and bit shift are an arrays
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# Python program explaining
# left_shift() function
import numpy as np
arr = [21, 15, 43]
bit_shift_arr =[2, 3, 4]
print ("Input array : ", arr)
print ("array of bit shift : ", bit_shift_arr )
ans = np.left_shift(arr, bit_shift_arr)
print ("After left shifting 2 bit : ", ans)