Re: [racket-users] rotate and union of a list of list of points

[Matthias Felleisen]

Can you describe an elliptical path in mathematical terms? 

Why do you want a list of list of points when a shape description is usually 
just a list of points? 

Also I have never heard of a Union of lists. If this is a homework problem, can 
you ask your instructor for clarification? 



On Dec 21, 2015, at 9:09 AM, Raquel Oliveira  wrote:

> I'm a beginner at racket and I am finding it difficult to make a list of 
> lists of points follow an elliptical path and also rotate them so that the 
> shape that they make it's facing the centre of the ellipse. I can't make a 
> union on this list either. Can anyone explain me a procedure to do this, 
> please.
> 
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[racket-users] rotate and union of a list of list of points

[Raquel Oliveira]

I'm a beginner at racket and I am finding it difficult to make a list of lists 
of points follow an elliptical path and also rotate them so that the shape that 
they make it's facing the centre of the ellipse. I can't make a union on this 
list either. Can anyone explain me a procedure to do this, please.

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