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Editorial Team
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Asked: 2026-05-25T03:23:08+00:00

I’m writing some 3D math classes for Python. I’d like to make a Point3

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I’m writing some 3D math classes for Python. I’d like to make a Point3 class that is separate from Vec3 in the following respects:

Point3 – Point3 = Vec3
Point3 + Vec3 = Point3

Otherwise, all operations on Vec3 you can perform on Point3. The motivation for this is to separate the mathematical concept of a point from a vector, hopefully leading to clearer type separation and an easier to understand API.

However, with Python’s duck typing and the common practice of expecting a certain interface regardless of type, is it better just to use a Vec3? Is it more efficient?

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1 Answer

  1. Editorial Team

    It seems superfluous. If you think about it, a point in cartesian space is entirely equivalent to a bound vector which begins at the origin. Sounds like you could be making a lot of work for yourself for nothing.

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