Functions¶

Module Contents¶

maths.check_polygon.check_polygon(nums: list[float]) → bool¶

Takes list of possible side lengths and determines whether a two-dimensional polygon with such side lengths can exist.

Returns a boolean value for the < comparison of the largest side length with sum of the rest. Wiki: https://en.wikipedia.org/wiki/Triangle_inequality

>>> check_polygon([6, 10, 5])
True
>>> check_polygon([3, 7, 13, 2])
False
>>> check_polygon([1, 4.3, 5.2, 12.2])
False
>>> nums = [3, 7, 13, 2]
>>> _ = check_polygon(nums) #   Run function, do not show answer in output
>>> nums #  Check numbers are not reordered
[3, 7, 13, 2]
>>> check_polygon([])
Traceback (most recent call last):
    ...
ValueError: Monogons and Digons are not polygons in the Euclidean space
>>> check_polygon([-2, 5, 6])
Traceback (most recent call last):
    ...
ValueError: All values must be greater than 0