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![An example of finite-precision issues in a simple collinearity algorithm](https://blogs.sas.com/content/iml/files/2023/11/numercollin4-480x336.png)
The collinearity problem is to determine whether three points in the plane lie along a straight line. You can solve this problem by using middle-school algebra. An algebraic solution requires three steps. First, name the points: p, q, and r. Second, find the parametric equation for the line that passes