I am plying in my sandbox, trying to add a polygon example without a hole to
the user manual.

It works fine in OpenSCAD, but whenI try to show it with WikiBooks I run
into a problem.

when I try to show:
polygon(points=[[0,0],[100,0],[130,50],[30,50]], paths=[[0,1,2,3]]);
the result is this:
polygon(points=[[0,0],[100,0],[130,50],[30,50]], paths=0,1,2,3);

The following all display what is specified:
a=[[0,0],[100,0],[130,50],[30,50]];
b=[[0,1,2,3],[]];
b=[0,1,2,3];

but this, which is the correct syntax:
b=[[0,1,2,3]];
shows this:
b=0,1,2,3;

where the brackets are removed and the numbers highlighted in red.

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The wiki also uses the following construct;

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<nowiki>b=[[0,1,2,3]];</nowiki>  does the job. tnx

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