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argmin/argmax empty list comment

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John Clements 2010-12-27 12:51:18 -08:00
parent 71223e6175
commit c7f1211c99
1 changed files with 4 additions and 4 deletions
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8
collects/scribblings/reference/pairs.scrbl
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@ -964,8 +964,8 @@ Returns a list with all elements from @racket[lst], randomly shuffled.
@defproc[(argmin [proc (-> any/c real?)] [lst (and/c pair? list?)]) any/c]{
This returns the first element in the list @scheme[lst] that minimizes
the result of @scheme[proc].
Returns the first element in the list @scheme[lst] that minimizes
the result of @scheme[proc]. Signals an error on an empty list.
@mz-examples[#:eval list-eval
(argmin car '((3 pears) (1 banana) (2 apples)))
@ -974,8 +974,8 @@ the result of @scheme[proc].
@defproc[(argmax [proc (-> any/c real?)] [lst (and/c pair? list?)]) any/c]{
This returns the first element in the list @scheme[lst] that maximizes
the result of @scheme[proc].
Returns the first element in the list @scheme[lst] that maximizes
the result of @scheme[proc]. Signals an error on an empty list.
@mz-examples[#:eval list-eval
(argmax car '((3 pears) (1 banana) (2 apples)))