# https://en.wikipedia.org/wiki/Electrical_reactance#Inductive_reactance
from __future__ import annotations

from math import pi


def ind_reactance(
 inductance: float, frequency: float, reactance: float
) -> dict[str, float]:
 """
 Calculate inductive reactance, frequency or inductance from two given electrical
 properties then return name/value pair of the zero value in a Python dict.

 Parameters
 ----------
 inductance : float with units in Henries

 frequency : float with units in Hertz

 reactance : float with units in Ohms

 >>> ind_reactance(-35e-6, 1e3, 0)
 Traceback (most recent call last):
 ...
 ValueError: Inductance cannot be negative

 >>> ind_reactance(35e-6, -1e3, 0)
 Traceback (most recent call last):
 ...
 ValueError: Frequency cannot be negative

 >>> ind_reactance(35e-6, 0, -1)
 Traceback (most recent call last):
 ...
 ValueError: Inductive reactance cannot be negative

 >>> ind_reactance(0, 10e3, 50)
 {'inductance': 0.0007957747154594767}

 >>> ind_reactance(35e-3, 0, 50)
 {'frequency': 227.36420441699332}

 >>> ind_reactance(35e-6, 1e3, 0)
 {'reactance': 0.2199114857512855}

 """

 if (inductance, frequency, reactance).count(0) != 1:
 raise ValueError("One and only one argument must be 0")
 if inductance < 0:
 raise ValueError("Inductance cannot be negative")
 if frequency < 0:
 raise ValueError("Frequency cannot be negative")
 if reactance < 0:
 raise ValueError("Inductive reactance cannot be negative")
 if inductance == 0:
 return {"inductance": reactance / (2 * pi * frequency)}
 elif frequency == 0:
 return {"frequency": reactance / (2 * pi * inductance)}
 elif reactance == 0:
 return {"reactance": 2 * pi * frequency * inductance}
 else:
 raise ValueError("Exactly one argument must be 0")


if __name__ == "__main__":
 import doctest

 doctest.testmod()