Hyperboloid of One Sheet Constructed with String Segments

Hyperboloid of One Sheet Constructed with String Segments
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2016-03-02 20:16
① This example demonstrates a one-sheet hyperboloid visualized by connecting corresponding points on two parallel circles with straight segments, forming a ruled surface mesh. ② Core mathematical concepts include the ruled nature of hyperboloids, parametric representation of surfaces, and spatial transformations such as translation and rotation. ③ Construction details: using GeoGebra commands Point, Sequence, Intersect, Vector, Translate, Rotate, and Segment, the model generates point lists (list1, list1', list2) and connects them to create the characteristic string-art appearance. ④ Suitable for high school to undergraduate courses in solid geometry, analytic geometry, or computer-aided geometry, as well as for mathematical modeling and artistic visualization of quadric surfaces, helping learners grasp the generation of ruled surfaces and the geometric properties of hyperboloids.

GeoGebra Commands & Parameters

  1. Point(xAxis) → A
  2. Sequence((1.5 * ℯ^((((ί * 2) * n) * π / a))), n, 0, a) → list1
  3. Intersect(yAxis, zAxis) → B
  4. Point(zAxis) → C
  5. Vector(B, C) → u
  6. Translate(list1, u) → list1'
  7. Rotate(list1', (-b), zAxis) → list1''
  8. Sequence(Segment[Element[list1, k], Element[list1'', k]], k, 2, a) → list2
  9. Point(list1'') → D
  10. Point(list1) → E
  11. Segment(D, E) → c