sorry, make that (*reduce alt-op *(*range 1 10)*)
On Thu, Nov 13, 2014 at 10:28 PM, Robert Levy <r.p.l...@gmail.com> wrote: > (let [op (atom +)] > (defn alt-op [a b] > ((swap! op #(if (= % +) - +)) a b))) > > (map alt-op (range 1 10)) > > On Thu, Nov 13, 2014 at 10:09 PM, Robert Levy <r.p.l...@gmail.com> wrote: > >> But for "applyv" you could do this: >> >> (*reduce + *(*map *(*comp eval list*) (*cycle *[*+ -*]) (*range 1 10*))) >> >> On Thu, Nov 13, 2014 at 10:06 PM, Robert Levy <r.p.l...@gmail.com> wrote: >> >>> Is that any more elegant than Dave's (reduce + (map * (cycle [1 -1]) >>> (range 1 n))) though? I would say that's the best actually sensible >>> answer proposed in this thread. >>> >>> On Thu, Nov 13, 2014 at 9:54 PM, Andy L <core.as...@gmail.com> wrote: >>> >>>> >>>> >>>> On Thu, Nov 13, 2014 at 7:23 PM, Robert Levy <r.p.l...@gmail.com> >>>> wrote: >>>> >>>>> You don't need this for numbers over 900 right? >>>>> >>>>> >>>> I see what you mean. But no, I just practice and try to capture >>>> patterns. So, going after your example I got following: >>>> >>>> (reduce + (map applyv (cycle [+ -]) (range 1 10))) >>>> >>>> where something like applyv perhaps exists, >>>> (defn applyv [f a] (f v)) - but I am not sure how to find it. >>>> >>>> A. >>>> >>>> >>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "Clojure" group. >>>> To post to this group, send email to clojure@googlegroups.com >>>> Note that posts from new members are moderated - please be patient with >>>> your first post. >>>> To unsubscribe from this group, send email to >>>> clojure+unsubscr...@googlegroups.com >>>> For more options, visit this group at >>>> http://groups.google.com/group/clojure?hl=en >>>> --- >>>> You received this message because you are subscribed to the Google >>>> Groups "Clojure" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to clojure+unsubscr...@googlegroups.com. >>>> For more options, visit https://groups.google.com/d/optout. >>>> >>> >>> >> > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
