On Thu, 23 Apr 2009, Don Watson wrote:
> %: (<:#y) %~ +/ *: y - (+/y) % #y
> 1.41421
> NB. It is again helpful to define the formula as a verb for easy reuse.
> NB. Remember from all our previous work that before we store it,
> we take out all of the "y"s to the left of a right parenthesis
> NB. Where a "y" is to the left of a verb, we need to replace it with (])
> stddev=: %: (<:#) %~ +/ *: (]) - (+/) % #
I see you point now. It is easier to arrive a pseudo tacit form
without knowing what a fork is. However I prefer to write tacit form
if that is within my capacity otherwise I just write explicit
definition shamelessly, not even bother to cheat with `13 :'.
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