Write a Python Program to Calculate Sum of Odd Numbers from 1 to N using While Loop, and For Loop with an example.
Python Program to Calculate Sum of Odd Numbers from 1 to N using For Loop
This Python program allows the user to enter the maximum value. Next, Python is going to calculate the sum of odd numbers from 1 to user-entered maximum value.
In this example, For Loop is used to keep the odd numbers are between 1 and maximum value.
TIP: I suggest you refer to Python Program to print Odd numbers from 1 to N article to understand the logic behind printing Odd numbers in Python.
# Python Program to Calculate Sum of Odd Numbers from 1 to N
maximum = int(input(" Please Enter the Maximum Value : "))
Oddtotal = 0
for number in range(1, maximum+1):
if(number % 2 != 0):
print("{0}".format(number))
Oddtotal = Oddtotal + number
print("The Sum of Odd Numbers from 1 to {0} = {1}".format(number, Oddtotal))
Python sum of odd numbers output
Please Enter the Maximum Value : 12
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The Sum of Odd Numbers from 1 to 12 = 36Python Program to display Sum of Odd Numbers from 1 to N without If
This Python sum of odd numbers program is the same as above. But, we used the third parameter inside the for loop to eliminate the If block.
maximum = int(input(" Please Enter the Maximum Value : "))
Oddtotal = 0
for number in range(1, maximum+1, 2):
print("{0}".format(number))
Oddtotal = Oddtotal + number
print("The Sum of Odd Numbers from 1 to {0} = {1}".format(number, Oddtotal))
Python sum of odd numbers using a for loop output
Please Enter the Maximum Value : 15
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The Sum of Odd Numbers from 1 to 15 = 64Python Program to find Sum of Odd Numbers using While Loop
In this Python program, we replaced the Python For Loop with the Python While Loop.
maximum = int(input(" Please Enter the Maximum Value : "))
Oddtotal = 0
number = 1
while number <= maximum:
if(number % 2 != 0):
print("{0}".format(number))
Oddtotal = Oddtotal + number
number = number + 1
print("The Sum of Odd Numbers from 1 to {0} = {1}".format(maximum, Oddtotal))
Python sum of odd numbers using a while loop output
Please Enter the Maximum Value : 20
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The Sum of Odd Numbers from 1 to 20 = 100Python Program to find Sum of Odd Numbers from 1 to 100
This Python example allows the user to enter Minimum and maximum value. Next, Python calculates the sum of odd numbers from Minimum to the maximum value.
# Python Program to Calculate Sum of Odd Numbers from 1 to 100
minimum = int(input(" Please Enter the Minimum Value : "))
maximum = int(input(" Please Enter the Maximum Value : "))
Oddtotal = 0
for number in range(minimum, maximum+1):
if(number % 2 != 0):
print("{0}".format(number))
Oddtotal = Oddtotal + number
print("The Sum of Odd Numbers from {0} to {1} = {2}".format(minimum, maximum, Oddtotal))
Program to calculate the sum of odd numbers using sum()
In the program below, Python range will iterate over alternating numbers from 1 to the given number. Here, we set the step value to 2, so the iteration is 1, 3, 5, 7, etc. (odd). Next, the sum() function will calculate the sum of those odd numbers.
n = int(input('Enter the Maximum = '))
o_tot = sum(range(1, n + 1, 2))
print('Sum of Odd = ', o_tot)
Enter the Maximum = 30
Sum of Odd = 225Also Read