/
xddxdd
/
Python
Обзор
Документация
Войти
/
xddxdd
/
Python
Код
Запросы
0
Задачи
Вики
Пакеты
0
Релизы
0
Аналитика
Безопасность
master
maths/power_using_recursion.py
63 строки
2 KB
Sankabapur
Added doctest to /maths/power_using_recursion.py (#11994)
30 дек 2024, 13:59
Не верифицирован
30 дек 2024, 13:59
da587d0
Код
Авторство
О чём код?
""" == Raise base to the power of exponent using recursion == Input --> Enter the base: 3 Enter the exponent: 4 Output --> 3 to the power of 4 is 81 Input --> Enter the base: 2 Enter the exponent: 0 Output --> 2 to the power of 0 is 1 """ def power(base: int, exponent: int) -> float: """ Calculate the power of a base raised to an exponent. >>> power(3, 4) 81 >>> power(2, 0) 1 >>> all(power(base, exponent) == pow(base, exponent) ... for base in range(-10, 10) for exponent in range(10)) True >>> power('a', 1) 'a' >>> power('a', 2) Traceback (most recent call last): ... TypeError: can't multiply sequence by non-int of type 'str' >>> power('a', 'b') Traceback (most recent call last): ... TypeError: unsupported operand type(s) for -: 'str' and 'int' >>> power(2, -1) Traceback (most recent call last): ... RecursionError: maximum recursion depth exceeded >>> power(0, 0) 1 >>> power(0, 1) 0 >>> power(5,6) 15625 >>> power(23, 12) 21914624432020321 """ return base * power(base, (exponent - 1)) if exponent else 1 if __name__ == "__main__": from doctest import testmod testmod() print("Raise base to the power of exponent using recursion...") base = int(input("Enter the base: ").strip()) exponent = int(input("Enter the exponent: ").strip()) result = power(base, abs(exponent)) if exponent < 0: # power() does not properly deal w/ negative exponents result = 1 / result print(f"{base} to the power of {exponent} is {result}")