In [10]:
# Vector-Scalar Multiplication

# The result will be calculated in the following way
# res = s*vec1[0] + s*vec1[1] + s*vec1[2]

s = 3
vec1 = np.array([5,1,3])

res = s * vec1

print(res)
print(type(res))
[15  3  9]
<class 'numpy.ndarray'>