[help]- two lines.

Правка en1, от gin_spirit, 2023-08-09 11:51:22

Given two lines L1 and L2, How can I determine whether they are parallel or not? Here L1 contains (x1,y1)(x2,y2) and L2 contains (X3,y3)(x4,y4)

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en1 Английский gin_spirit 2023-08-09 11:51:22 162 Initial revision (published)