[plt-scheme] help with higher order functions

Oh, duh. I completely missed that when I read it the first time.
Knowing to look for it made it much easier to spot. :-)

On Wed, Mar 18, 2009 at 4:09 PM, Matthias Felleisen
<matthias at ccs.neu.edu> wrote:
>
> All useful functions: +, /, -, ... and map, foldr, etc come in this shape.
> That's what my comment implied.
>
>
> On Mar 18, 2009, at 4:05 PM, Todd O'Bryan wrote:
>
>> Aha! The version of map introduced in HtDP doesn't mention that you
>> can use multiple lists. I knew there must be some standard way to do
>> it...
>>
>>> On Wed, Mar 18, 2009 at 9:42 AM, Todd O'Bryan <toddobryan at gmail.com>
>>> wrote:
>>>>
>>>> What is the proper Scheme idiom to write this function?
>>>
>>> I am not sure the scope of proper to which you refer but are you
>>> looking for something like this:
>>>
>>> (map + '(1 1 1) '(1 1 1))
>>>
>>> => (2 2 2)
>>>
>>> or more?
>>>
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>
>