How to multiply individual elements of a list with a number?

Question

S = [22, 33, 45.6, 21.6, 51.8] P = 2.45 

Here S is an array

How will I multiply this and get the value?

SP = [53.9, 80.85, 111.72, 52.92, 126.91] 

Answer 1

In NumPy it is quite simple

import numpy as np P=2.45 S=[22, 33, 45.6, 21.6, 51.8] SP = P*np.array(S) 

I recommend taking a look at the NumPy tutorial for an explanation of the full capabilities of NumPy's arrays:

https://scipy.github.io/old-wiki/pages/Tentative_NumPy_Tutorial

Answer 2

You can use built-in map function:

result = map(lambda x: x * P, S) 

or list comprehensions that is a bit more pythonic:

result = [x * P for x in S]