Probably more like
vert=: {{0!:0;:inv@;;.1 a:,<@}:@;:@,&' NB.';._2 m}}
{{)n
NB. y Possible squares of integers. Return either integer
NB. square roots or 0s.
intsqrt=: {{
y
* NB. Multiply to produce either integer square roots or 0s
y
= NB. 1s where the calculated square = the original square
x: NB. Force extended precision on *:
*: NB. Square the square roots
<. NB. Round the square roots to an integer
0.5
+
x: NB. Force extended precision on ^
10 NB. calculate the square roots
^
-: NB. 0.5(log(n)) = log(sqrt(n))
x: NB. Force extended precision on ^.
10
^. NB. Log base 10
y
}}
}}vert
That said, this implementation does not actually take advantage of
extended precision. (It has extended precision intermediate results,
but that's not the same thing.)
FYI,
--
Raul
On Wed, Apr 27, 2022 at 10:42 PM Elijah Stone <elro...@elronnd.net> wrote:
>
> I thought what was wanted was to write the _comments_ vertically, as in:
>
> mean=: +/ % #
> NB. i sr d l
> NB. s ue i e
> NB. md v n
> NB. u i g
> NB. c d t
> NB. t e h
> NB. i d
> NB. o
> NB. n b
> NB. y
>
> On Wed, 27 Apr 2022, Raul Miller wrote:
>
> > For what it's worth, J could easily be written vertically. But that's
> > probably not quite what people would want.
> >
> > vertical=: {{ 0!:0;:inv{.@;:;._2 m}}
> > {{)n
> > mean
> > =:
> > +
> > /
> > %
> > #
> > }}vertical
> >
> > mean 1 2 3
> > 2
> >
> > --
> > Raul
> >
> > On Wed, Apr 27, 2022 at 2:01 PM Hauke Rehr <hauke.r...@uni-jena.de> wrote:
> >>
> >> What keeps you from writing your comments vertically‽
> >>
> >> Am 27.04.22 um 14:50 schrieb Ed Gottsman:
> >> > If J were written vertically, it might be easier to comment.
> >>
> >> --
> >> ----------------------
> >> mail written using NEO
> >> neo-layout.org
> >> ----------------------------------------------------------------------
> >> For information about J forums see http://www.jsoftware.com/forums.htm
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
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