How to Do Elementwise Math in Python

This video shows how to perform elementwise math operations using base python lists, numpy arrays and on the columns of pandas dataframes.

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Code used in this Python Code Clip:

# Elementwise math on two lists using zip

list1 = [1,2,3,4,5]
list2 = [6,7,8,9,10]

elementwise_result = [l1 + l2 for l1, l2 in zip(list1, list2)]

elementwise_result

# Elementwise math using numpy arrays

import numpy as np

list1 = np.array(list1)
list2 = np.array(list2)

list1 + list2

# Elementwise math on columns in pandas data frames

import pandas as pd

df = pd.DataFrame(data = {"list1": list1, "list2" : list2})

df.list1 + df.list2



* Note: YouTube does not allow greater than or less than symbols in the text description, so the code above will not be exactly the same as the code shown in the video! I will use Unicode large ＜ and ＞ symbols in place of the standard sized ones. .


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