 Solution

ID: past-exam-of-the-year-1-of-the-computer-science-course-of-the-university-of-oxford/2016/functional-programming-design-and-analysis-of-algorithms-resit/4/c/solution

distBetween :: Point -> Point -> Double
distBetween (x,y) (u,v) = sqrt ((x-u)^2 + (y-v)^2)

Thus

d ((x, y), (u, v)) = (x - u)^{2} + (y - v)^{2}

. The type synonym expands to pairs of floating-point coordinates.

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