[plt-scheme] solution for exercise 11.2.4

No. Try following the recipe.

On Jun 10, 2008, at 2:08 PM, carlo ambrogio wrote:

>
> could it be right?
>
> (define (depth a-dl)
>     (cond
>     [(symbol? a-dl) 0]
>     [else (list? (first a-dl)) (+ 1 (depth (rest a-dl)))]))
>
>
> N.B. at the moment I'm away from my Dr.Scheme program...so I cannot  
> run the code above...
>
> ----------------------------------------
>> CC: plt-scheme at list.cs.brown.edu
>> From: matthias at ccs.neu.edu
>> Subject: Re: [plt-scheme] solution for exercise 11.2.4
>> Date: Mon, 9 Jun 2008 21:10:25 -0400
>> To: cr-service at hotmail.it
>>
>>
>> Not true. You answered the question already and they are *trivial*
>> question. I just want you to learn to think about what you're doing
>> instead of just following something in a rote manner. Once you know
>> how to think about it, you'll internalize and empower yourself to
>> apply such things in situations where you never expected it.
>>
>> Try again. I expect an answer in 10 mins.
>>
>>
>> On Jun 9, 2008, at 8:58 PM, carlo ambrogio wrote:
>>
>>>
>>> ok now i'm stucked...
>>> ----------------------------------------
>>>> CC: plt-scheme at list.cs.brown.edu
>>>> From: matthias at ccs.neu.edu
>>>> Subject: Re: [plt-scheme] solution for exercise 11.2.4
>>>> Date: Mon, 9 Jun 2008 20:38:29 -0400
>>>> To: cr-service at hotmail.it
>>>>
>>>>
>>>> Let me rephrase John's criticism: you jumped the gun and shot
>>>> yourself.
>>>>
>>>> Just answer the questions that I asked. Not more, not less.
>>>>
>>>>
>>>> On Jun 9, 2008, at 6:53 PM, carlo ambrogio wrote:
>>>>
>>>>>
>>>>> the template could be:
>>>>>
>>>>> (define (depth a-dl)
>>>>>   (cond
>>>>>     [(symbol? a-dl) ...]
>>>>>     [else ... (first a-dl) ... (depth (rest a-dl)) ...]))
>>>>>
>>>>> how many clauses does the data def have? (how many clauses must  
>>>>> the
>>>>> function def have?)
>>>>>
>>>>> I think 2 (the data can be a symbol or a list)
>>>>>
>>>>>
>>>>>
>>>>>
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>
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