What are Even Numbers? | Maths Explanation for Python Kids
Hello pupils, what are even numbers?
Answer:
Even numbers are numbers that are divisible by 2.
They include:
Considering how simple and straight-forward even numbers are, writing a Python code for even numbers
serves as a great way to introduce our Mathematics educational activities for young learners.
Well then, let's see how we can write a programming code to make our computer
list a set of even numbers in the Python language, between a given range of values.
Bear in mind, we use only a loop and a simple conditional statement for the Python code.
Create a new Python Class File;
call it Arithmetic.py.
Create a new Python Module File;
call it evenNumbers.py.
Type out the adjoining Python code that lists even numbers.
How to run Python Codes
Run the code from the cmd shell with the command:
cd ~/Documents/usingMaths -- to navigate to the folder where
you saved your files;
python Arithmetic.pl
So! Python Fun Practice Exercise - List Even Numbers
As a fun practice exercise, feel free to try out your own boundary values, and see how the Python code lists the even numbers between those boundary values.
Python Code for Even Numbers - Module File.
# define a class
class EvenNumerals:
###
# Our constructor.
# @param alpha - for the start value
# @param omega - for the end value
##
def __init__(self, alpha, omega):
self.start = alpha
self.stop = omega
self.result = [] # list to hold our answers
# Returns an list of the desired set of even numbers
def prepResult(self):
# Loop from start to stop and rip out even numbers;
self.i = 0
while self.start <= self.stop:
if self.start % 2 == 0: # modulo(%) is explained later
self.result.append(self.start)
self.i += 1
self.start = self.start + 1 # increase start by 1
return self.result
Python Code for Even Numbers - Main Class Code.
from EvenNumbers import EvenNumerals
# Use the even number module/class
lower_boundary = 1
upper_boundary = 100
even_list = EvenNumerals(lower_boundary, upper_boundary)
answer = even_list.prepResult()
print("Even numbers between", lower_boundary, "and", upper_boundary, "are:\n", answer)
print("\n\n")