nerdolo
nerdolo
/ quadrangle to triangles
Created
April 20, 2020 19:46
function for dividing quadrangle into two triangles that create it regardless of initial points order
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| import math | |
| def matrix_det(mat): # mat - matrix | |
| det, k_1, k_2 = 0, 1, 1 | |
| for i in range(3): | |
| for j in range(3): | |
| k_1 *= mat[(i + j) % 3][j % 3] | |
| k_2 *= mat[-((i + j) % 3)][-(j % 3)] | |
| det += k_1 - k_2 | |
| return det |