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Python: Find the difference between elements (n+1th – nth) of a given list of numeric values

Python List: Exercise - 118 with Solution

Write a Python program to find the difference between elements (n+1th – nth) of a given list of numeric values.

Sample Solution:

Python Code:

def elements_difference(nums):
    result = [j-i for i, j in zip(nums[:-1], nums[1:])]
    return result

nums1 = [1,2,3,4,5,6,7,8,9,10]
nums2 = [2,4,6,8]

print("Original list:")
print(nums1)
print("\nDfference between elements (n+1th – nth) of the said list :")
print(elements_difference(nums1))
print("\nOriginal list:")
print(nums2)
print("\nDfference between elements (n+1th – nth) of the said list :")
print(elements_difference(nums2))


Sample Output:

Original list:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

Dfference between elements (n+1th – nth) of the said list :
[1, 1, 1, 1, 1, 1, 1, 1, 1]

Original list:
[2, 4, 6, 8]

Dfference between elements (n+1th – nth) of the said list :
[2, 2, 2]

Pictorial Presentation:

Python List: Find the difference between elements (n+1th – nth) of a given list of numeric values.

Flowchart:

Flowchart: Find the difference between elements (n+1th – nth) of a given list of numeric values.

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Python: Tips of the Day

Floor Division:

When we speak of division we normally mean (/) float division operator, this will give a precise result in float format with decimals.

For a rounded integer result there is (//) floor division operator in Python. Floor division will only give integer results that are round numbers.

print(1000 // 300)
print(1000 / 300)

Output:

3
3.3333333333333335