ปริภูมิฮิลเบิร์ท

A Hilbert space is a mathematical space where you can measure distances and angles between points, and it's complete in the sense that every sequence of points that gets progressively closer together actually converges to a point within that space. This structure is fundamental to quantum mechanics and many areas of physics and mathematics because it provides the right framework for describing how systems evolve and how quantities can be measured.

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