Dear Maple users

I am delighted that Maple has builtin commands to plot so many polyhedrons in 3D. Here I am talking about the *polyhedraplot* command in the *plots* package. I was however disappointed that the socalled Truncated Icosahedron is not supported (not present in the supported list ...). My first question is:

**1. Why isn't it supported?**

It seems more relevant than many of the other polyhedrons which are supported. It is a member of the *Archimedian Solids* (see https://en.wikipedia.org/wiki/Truncated_icosahedron). Besides it is the basic structure for soccer footballs. I found out that a TruncatedIcosahedron command is available in the *geom3d* package. This command is able to deliver data for the faces and more. With this command I succeded in writing a small program to actually plot this polyhedron in 3D:

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restart;

with(geom3d):

with(plots):

TruncatedIcosahedron(football,point(C,(0,0,0)),1):

PlotFootball:=proc(tr::float)

local i::integer,

FootballFace::Vector(datatype=float[8]),

plotFace::Vector(datatype=float[8]);

for i from 1 to 32 do

FootballFace[i]:=faces(football)[i];

plotFace[i]:=polygonplot3d(Matrix(FootballFace[i]),axes=none,scaling=constrained,transparency=tr);

end do;

display(seq(plotFace[i],i=1..32)):

end proc:

PlotFootball(0.00);

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Since I am not really experienced in programming in Maple, here is my last question:

**2. Can I simplify something in my code above?**

Best wishes,

Erik