Python/maths/series/p_series.py
Muhammad Ibtihaj Naeem bc5b92f7f9 Harmonic Geometric and P-Series Added (#1633)
* Harmonic Geometric and P-Series Added

* Editing comments

* Update and rename series/Geometric_Series.py to maths/series/geometric_series.py

* Update and rename series/Harmonic_Series.py to maths/series/harmonic_series.py

* Update and rename series/P_Series.py to maths/series/p_series.py
2019-12-14 06:46:02 +01:00

49 lines
1.2 KiB
Python

"""
This is a pure Python implementation of the P-Series algorithm
https://en.wikipedia.org/wiki/Harmonic_series_(mathematics)#P-series
For doctests run following command:
python -m doctest -v p_series.py
or
python3 -m doctest -v p_series.py
For manual testing run:
python3 p_series.py
"""
def p_series(nth_term: int, power: int) -> list:
"""Pure Python implementation of P-Series algorithm
:return: The P-Series starting from 1 to last (nth) term
Examples:
>>> p_series(5, 2)
[1, '1/4', '1/9', '1/16', '1/25']
>>> p_series(-5, 2)
[]
>>> p_series(5, -2)
[1, '1/0.25', '1/0.1111111111111111', '1/0.0625', '1/0.04']
>>> p_series("", 1000)
''
>>> p_series(0, 0)
[]
>>> p_series(1, 1)
[1]
"""
if nth_term == "":
return nth_term
nth_term = int(nth_term)
power = int(power)
series = []
for temp in range(int(nth_term)):
series.append(f"1/{pow(temp + 1, int(power))}" if series else 1)
return series
if __name__ == "__main__":
nth_term = input("Enter the last number (nth term) of the P-Series")
power = input("Enter the power for P-Series")
print("Formula of P-Series => 1+1/2^p+1/3^p ..... 1/n^p")
print(p_series(nth_term, power))