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Python: Test whether a given number is symmetrical or not

Python Basic - 1: Exercise-83 with Solution

Write a Python program to test whether a given number is symmetrical or not. A number is symmetrical when it is equal to its reverse.

For example- 121 is the symmetric number.

Sample Solution:

Python Code:

# Define a function to check if a number is symmetrical
def is_symmetrical_num(n):
    # Convert the number to a string and compare it with its reverse
    return str(n) == str(n)[::-1]

# Test cases
print(is_symmetrical_num(121))    # True, as 121 is a symmetrical number
print(is_symmetrical_num(0))      # True, as single-digit numbers are symmetrical
print(is_symmetrical_num(122))    # False, as 122 is not a symmetrical number
print(is_symmetrical_num(990099)) # True, as 990099 is a symmetrical number

Sample Output:

True
True
False
True

Explanation:

Here is a breakdown of the above Python code:

  • The function "cal_median()" takes a list of numbers as input.
  • The list is sorted in ascending order using the "sort()" method.
  • The length of the list ('n') is calculated, and the middle index ('m') is determined.
  • If the length is even, the average of the two middle numbers is returned; otherwise, the middle number is returned.
  • Test cases are provided to demonstrate the function's functionality.

Visual Presentation:

Python: Test whether a given number is symmetrical or not.
Python: Test whether a given number is symmetrical or not.

Flowchart:

Flowchart: Python - Test whether a given number is symmetrical or not.

Python Code Editor:

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Previous: Write a Python program to calculate the median from a list of numbers.
Next: Write a Python program that accepts a list of numbers. Count the negative numbers and compute the sum of the positive numbers of the said list. Return these values through a list.

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