segunda-feira, 21 de Dezembro de 2015 às 14:09:30 UTC, Raquel Oliveira escreveu:
> 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.


Sorry, I have very few knowledge in racket language, maybe I did not explain 
myself well. 
Basically, I defined points that would create lists. This lists were then used 
on another list that formed a shape that I wanted (I think this is called a 
list of lists). After this, I tried to make the recursion of the shape of the 
list of lists by adding an angle in which it would create the same shape, this 
following a path (the ellipse). Moreover, I apllied rotate so that the shape 
faces the interior of the ellipse. 

Well, this is a homework problem, and I did reached out to my instructor who 
told me that the solution would be to make sure that everything was united 
correctly so that there would be no problem with the rotate. However, I can't 
make it work, so I thought I would ask a second opinion.

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