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Biscribed Truncated Icosidodecahedron n=120, Polyhedra with Extreme Vertex Distr

Biscribed Truncated Icosidodecahedron n=120, Polyhedra with Extreme Vertex Distr
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2020-11-10 02:52
Solid GeometryOptimization
In collections ₈Polyhedra with extreme distribution of equivalent vertices
This example demonstrates the geometric construction of a Biscribed Truncated Icosidodecahedron n=120, highlighting the extreme distribution of equivalent vertices in polyhedra. Core mathematical concepts include polyhedral construction, vertex distribution, and geometric optimization. The construction utilizes GeoGebra commands and objects such as Text, Sum, If, Length, Sequence, Div, Element, TableText, IndexOf, First, and Max to achieve complex parameterized modeling. Suitable for high school students and geometry enthusiasts, this example aids in understanding polyhedral geometry and optimization problems.

GeoGebra Commands & Parameters

  1. Text("" + p) → txt_p
  2. Sum(Flatten[Sequence[Append[Sequence[Element[txt_p, i], i, m01(k), m02(k)], " "], k, 1, 5]]) → txtUm1
  3. If(bu0, A00, A00d) → A00_0
  4. Length(A00_0) → n
  5. Length(l2) → läl2
  6. Sequence(sgn(Determinant[{Element[A00_0, i1] - Element[A00_0, j], Element[A00_0, i2] - Element[A00_0, j], Element[A00_0, i3] - Element[A00_0, j]}]), j, 1, n) → l01
  7. Length(A00d) → zzz
  8. Sum(Zip[(T * F), T, SysTimeAkt1, F, {1, 1000, 60000, 3600000, 86400000}]) → TimeAbs1
  9. Sum(Zip[(T * F), T, SysTimeAkt2, F, {1, 1000, 60000, 3600000, 86400000}]) → TimeAbs2
  10. Div(TimeRelab, 3600) → H
  11. Div(TimeRelab - (H * 3600), 60) → M
  12. Element(ZwZeit, step) → text10
  13. TableText({Append["a duration", Last[ZwZeit, Min[10, Length[ZwZeit]]]]}, "v") → text2c
  14. Length(A00) → lm1
  15. If(Length[Unique[l01 \ {0}]] ≟ 1, 7, -7) → a7
  16. Sum(Zip[(T * F), T, SysTimeAkt0, F, {1, 1000, 60000, 3600000, 86400000}]) → TimeAbs0
  17. Div(TimeRelab0, 3600) → H0
  18. Div(TimeRelab0 - (H0 * 3600), 60) → M0
  19. Text("" + (TimeRelab0 - (H0 * 3600) - (M0 * 60))) → S0a
  20. Text("" + (TimeRelab - (H * 3600) - (M * 60))) → S
  21. IndexOf(".", S) → index
  22. IndexOf(".", S0a) → indexa
  23. First(S, index + 1) → txtS
  24. First(S0a, indexa + 1) → txtS0a
  25. If(bu0, " ", "d") → txtbuo
  26. Max(Length[A00], Length[A00d]) → maxlä
  27. Element(A00, 24) → m11
  28. TableText({{"\underline{Polyhedron}"}, Append["Vertices: n=", {Length[A00]}], Append["r=", {r}], Append["\bar{r}=", {r_m}], Append["k-gon : k=", mm5a], Append["their\; numbers: n_k=", mm7a], Append["Volume: V=", {Vol_r}], Append["Average\; distance: p=", {txtUm1}]}, "hr ") → text7
  29. TableText({{"\underline{dual\;Polyhedron}"}, Append["Vertices: n=", {Length[A00d]}], Append["r=", {r_d}], Append[" \bar{r_d}= ", {r_md}], Append["k-gon : k=", mm5ad], Append["their\; numbers: n_k=", mm7ad], Append["Volume: V=", {Vold_r}]}, "hr ") → text20

AI Drawing Prompt Reference

Construct a biscribed truncated icosidodecahedron with parameterized vertex set using n=120, and visualize both the polyhedron and its dual. First include textual annotations for the parameters and computed statistics. Then build the vertex set by evaluating a determinant/sign condition from indexed triples of vertex coordinates, using the resulting indices to generate the required vertices and ensure the desired extreme-equivalent-vertex distribution. After the polyhedra are formed, add a summary in the figure for each of the polyhedron and the dual, listing their vertex counts, the values r and r̄, the k-gon parameter k with the associated vertex numbers n_k, and the computed volume V and average distance p.
The prompt above was compiled from the original drawing commands and is for reference only.