I managed to produce a few more:
⊂ =. <
⊃ =. >
○ =. o.
¨ =. &.>
⍣ =. ^:
⍞=. 1!:1@(1"_)@:(1!:2&2@:(] [ (('(wd)'"_) 128!:2 ])@:('msgs'"_))@:[) NB. +
or -
⍨ =. ~
Yet, for example, I do not have the slightest idea of what these do:
⍠ ⍯ ⍰ ⍌ ⍍ ⍐ ⍓ ⍔ ⍗ ⌷ ⌸
The math characters on that page are nice indeed!
√ =. %:
∑ =. +/
∐ =. */
⊙ =. * NB. Hadamard product
Block=. (,./^:2)@:
⊗ =. */Block NB. Kronecker product
∗ =. */Block &.> NB. Khatri-Rao product
⋈ =. (1 0 3 |: */)Block&.>/Block NB. Tracy-Singh product
... You name it ;)
On Tue, Nov 28, 2017 at 3:22 AM, Erling Hellenäs <[email protected]>
wrote:
> Cool. And here some nice mathematical unicode characters we could possibly
> use. http://jrgraphix.net/r/Unicode/2200-22FF /Erling
>
>
>
> Den 2017-11-28 kl. 01:59, skrev Jose Mario Quintana:
>
>> ⌽ ⌹ ⍉ (4 4 ⍴ ⍳ 16) ⋆ 0.5
>>
>> 47.4709 _536.891 986.951 _495.868
>>
>> _85.5088 930.92 _1689.17 841.731
>>
>> 39.2057 _386.597 679.391 _331.519
>>
>> _2.29896 8.48562 _10.1715 3.98314
>>
>>
>>
>> Neither, it is J's fork Jx after running the following script:
>>
>> NB. APL retro...
>>
>>
>> NB. ¯
>>
>>
>> × =. *
>>
>> ÷ =. %
>>
>>
>> NB. ∘ =. "0/ ⍝ Not really (e.g., 1 2 3 , ∘ 4 5 6)
>>
>>
>> ∣ =. |
>>
>> ∼ =. -.
>>
>> ≠ =. ~:
>>
>> ≤ =. <:
>>
>> ≥ =. >:
>>
>>
>> NB. ≬ ⌶
>>
>>
>> ⋆ =. ^
>>
>>
>> NB.⌾
>>
>>
>> ⍟ =. ^.
>>
>> ⌽ =. |.
>>
>> ⍉ =. |:
>>
>>
>> NB. ⍝ ⍦ ⍧ ⍪ ⍫ ⍬ ⍭ ←
>>
>>
>> ↑ =. {.
>>
>> NB. →
>>
>> ↓ =. }.
>>
>>
>> NB. ∆ ∇
>>
>>
>> ∧ =. *.
>>
>> ∨ =. +.
>>
>>
>> NB. ∩ ∪
>>
>>
>> ⌈ =. >.
>>
>> ⌊ =. <.
>>
>> ∈ =. e.
>>
>> ⊤ =. #.
>>
>> ⊥ =. #:
>>
>>
>> NB. ⊂ ⊃
>>
>>
>> ⌿ =. /
>>
>> ⍀ =. /\
>>
>>
>> NB. ⍅ ⍆ ⍏ ⍖ ⍊ ⍑
>>
>>
>> ⍋ =. /:
>>
>> ⍒ =. \:
>>
>> ⍎ =. ".
>>
>> ⍕ =. ":
>>
>>
>> NB. ⍱ ⍲ ○
>>
>>
>> ⍳ =. i.
>>
>> ⍴ =. $
>>
>>
>> NB. ⍵ ⍺ ⍶ ⍷ ⍸ ⍹ ⍘ ⍙ ⍚ ⍛ ⍜ ⍮ ¨ ⍡ ⍢ ⍣ ⍤ ⍥ ⍨ ⍩
>>
>> NB. ⎕ ⍞ ⍠ ⍯ ⍰ ⍌ ⍍ ⍐ ⍓ ⍔ ⍗ ⌷ ⌸
>>
>> ⌹ =. %.
>>
>> NB. ⌺ ⌻ ⌼ ⍁ ⍂ ⍃ ⍄ ⍇ ⍈
>>
>>
>>
>> ⌽ ⌹ ⍉ (4 4 ⍴ ⍳ 16) ⋆ 0.5
>>
>>
>> Extra spaces are required because Unicode characters are just forming
>> names.
>>
>> I got this list of APL characters from:
>> http://xahlee.info/comp/unicode_APL_symbols.html
>>
>> I did not complete many definitions because some cannot have a
>> counterpart,
>> I ran out of time, I did not remember exactly the definition or I have no
>> idea what they mean... I wonder how many primitives in modern APLs could
>> have interesting useful counterparts in J.
>>
>> This is, of course, just for fun since APL and J are different. In
>> addition, I would not be surprised if I got some of these definitions
>> wrong
>> (I have not used APL for more than a decade and a half and I cannot test
>> anything).
>>
>> :)
>>
>> PS. Nevertheless, any corrections, extensions, and comments would be
>> appreciated.
>> ----------------------------------------------------------------------
>> 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
