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68 lines (57 loc) · 1.68 KB
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"""
A NOR Gate is a logic gate in boolean algebra which results in false(0) if any of the
inputs is 1, and True(1) if all inputs are 0.
Following is the truth table of a NOR Gate:
Truth Table of NOR Gate:
| Input 1 | Input 2 | Output |
| 0 | 0 | 1 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 0 |
Code provided by Akshaj Vishwanathan
https://www.geeksforgeeks.org/logic-gates-in-python
"""
from collections.abc import Callable
def nor_gate(input_1: int, input_2: int) -> int:
"""
>>> nor_gate(0, 0)
1
>>> nor_gate(0, 1)
0
>>> nor_gate(1, 0)
0
>>> nor_gate(1, 1)
0
>>> nor_gate(0.0, 0.0)
1
>>> nor_gate(0, -7)
0
"""
return int(input_1 == input_2 == 0)
def truth_table(func: Callable) -> str:
"""
>>> print(truth_table(nor_gate))
Truth Table of NOR Gate:
| Input 1 | Input 2 | Output |
| 0 | 0 | 1 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 0 |
"""
def make_table_row(items: list | tuple) -> str:
"""
>>> make_table_row(("One", "Two", "Three"))
'| One | Two | Three |'
"""
return f"| {' | '.join(f'{item:^8}' for item in items)} |"
return "\n".join(
(
"Truth Table of NOR Gate:",
make_table_row(("Input 1", "Input 2", "Output")),
*[make_table_row((i, j, func(i, j))) for i in (0, 1) for j in (0, 1)],
)
)
if __name__ == "__main__":
import doctest
doctest.testmod()
print(truth_table(nor_gate))