On Tue, 03 Mar 2009, Sherlock Ric wrote:
> ---Alex Rufon wrote:
> > SortUp and GradeUp are both defined as /: in the primitives. In
> > parallel, SortDown and GradeDown also suffers the same issue.
>
> SortUp refers to dyadic use of /:, GradeUp refers to monadic use of /:
>
> /:~ myarray
> Is the special case of SortUp where you are sorting it by the grade of
> itself, i.e.
> myarray /: myarray
> However often you will want to use
> myarray /: my2ndarray
>
> You cannot do this if you redefine SortUp as /:~
I think Alex's argument is reasonable. Dyadic sort is alien to most
programmers. If primitives are meant for beginners, rename SortUp as
DyadSortUp and define SortUp as /:~ will cause less surprise for those
not yet initiated.
--
regards,
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