Lab
A Cloud Guru

Writing Four Functions to Perform Different Arithmetic Operations in Python

In this hands-on lab, we will attempt to write four functions that will perform different arithmetic operations: addition, subtraction, multiplication, and division.

Try for free Contact sales

Path Info

Level

Beginner

Duration

2h 0m

Published

Aug 06, 2020

Challenge

Create a File and Make It Executable
1. Create the file:
```
touch myFile.py
```
2. Make it executable:
```
chmod +x myFile.py
```

Challenge

Write Three Functions That Are Able to Add, Subtract, and Multiply Two Numbers

Open the file:
```
vim myFile.py
```

Add the following to the file:

#!/usr/bin/python

def add(n1, n2):
    return n1+n2
def sub(n1, n2):
    return n1-n2
def multi(n1, n2):
    return n1*n2

Challenge

Write a Function to Divide Two Numbers and Implement a Check for Division by 0

Add the following to the file:

def div(n1, n2):
    if n2 == 0:
        return "ERROR: Cannot divide by 0. Second parameter cannot be a 0!"
    else:
      return n1/n2

Challenge

Run Tests and Call All Four Functions
1. Add the following to the file:
```
n1 = 10
n2 = 11

print(add(n1, n2))
print(sub(n1, n2))
print(multi(n1, n2))
print(div(n1, n2))
n2 = 0
print(div(n1, n2))
```
2. Save and exit the file by pressing Escape followed by :wq.
3. Call all four functions:
```
./myFile.py
```

Author

A Cloud Guru

The Cloud Content team comprises subject matter experts hyper focused on services offered by the leading cloud vendors (AWS, GCP, and Azure), as well as cloud-related technologies such as Linux and DevOps. The team is thrilled to share their knowledge to help you build modern tech solutions from the ground up, secure and optimize your environments, and so much more!

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.