Re: [racket-users] HtDP2e, exercise 9, image area

2017-08-15 Thread Fernando Basso 
On Tuesday, August 15, 2017 at 12:01:25 PM UTC-3, Matthias Felleisen wrote:
> > On Aug 15, 2017, at 6:08 AM, Fernando Basso wrote:
> > 
> > Exercise 9: 
> > http://homedirs.ccs.neu.edu/matthias/HtDP2e/part_one.html#%28counter._%28exercise._arith-p1%29%29
> > 
> > Among other requirements, it says, “for an image, it uses the area”. Not 
> > sure whether I should _assume_ the image is a basic shape like a square or 
> > if something more advanced is expected.
> 
> 
> You may wish to re-read the section that introduces Images. I have changed 
> the prose of the exercise so that the various kinds of data link back to 
> their defining sections.



On Tuesday, August 15, 2017 at 12:01:25 PM UTC-3, Matthias Felleisen wrote:
> > On Aug 15, 2017, at 6:08 AM, Fernando Basso wrote:
> > 
> > Exercise 9: 
> > http://homedirs.ccs.neu.edu/matthias/HtDP2e/part_one.html#%28counter._%28exercise._arith-p1%29%29
> > 
> > Among other requirements, it says, “for an image, it uses the area”. Not 
> > sure whether I should _assume_ the image is a basic shape like a square or 
> > if something more advanced is expected.
> 
> 
> You may wish to re-read the section that introduces Images. I have changed 
> the prose of the exercise so that the various kinds of data link back to 
> their defining sections.

Ah, very good. So, “An Image is a visual, rectangular piece of data, for 
example, a photo or a geometric figure and its frame.”

Thanks a lot.

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Re: [racket-users] HtDP2e, exercise 9, image area

2017-08-15 Thread Matthias Felleisen 

> On Aug 15, 2017, at 6:08 AM, Fernando Basso  
> wrote:
> 
> Exercise 9: 
> http://homedirs.ccs.neu.edu/matthias/HtDP2e/part_one.html#%28counter._%28exercise._arith-p1%29%29
> 
> Among other requirements, it says, “for an image, it uses the area”. Not sure 
> whether I should _assume_ the image is a basic shape like a square or if 
> something more advanced is expected.


You may wish to re-read the section that introduces Images. I have changed the 
prose of the exercise so that the various kinds of data link back to their 
defining sections. 

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