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added method for checking armstrong number #1936

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Merged
merged 2 commits into from May 3, 2020
Merged

added method for checking armstrong number #1936

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added method for checking armstrong number
May 3, 2020
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cclauss May 3, 2020
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9 changes: 9 additions & 0 deletions maths/armstrong_numbers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -41,13 +41,22 @@ def armstrong_number(n: int) -> bool:
temp //= 10
return n == sum

def narcissistic_number(n:int) -> bool:
"""Return True if n is a narcissistic number or False if it is not"""

expo = len(str(n)) #power, all number will be raised to
temp = [(int(i)**expo) for i in str(n)] # each digit will be multiplied expo times

# check if sum of cube of each digit is equal to number
return n == sum(temp)

def main():
"""
Request that user input an integer and tell them if it is Armstrong number.
"""
num = int(input("Enter an integer to see if it is an Armstrong number: ").strip())
print(f"{num} is {'' if armstrong_number(num) else 'not '}an Armstrong number.")
print(f"{num} is {'' if narcissistic_number(num) else 'not '}an Armstrong number.")


if __name__ == "__main__":
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