x is a 'control' input to the fold.
Each item of y (and x if given) is a 'data' input to v.
There's an end on't!
Henry rich
On 2/23/2021 2:46 PM, Brian Schott wrote:
I think I am in favor of Sergey's suggestion. In my excerpted J session
below I created a verb called test which has the traditional arguments x
and y to emphasize how I think of the placement of x and y. The x and y in the
verb test are reversed relative to the x and y in see_arg. That's the
inconsistency. So, I guess I'm one of the 8 people using F: now. <grin>
see_arg =: dyad : 0
echo x, y
x + y
)
test=: 4 : 'x ] F:. see_arg y'
test
4 : 'x ] F:. see_arg y'
7 test 1 2 3 4
1 7
2 8
3 10
4 13
8 10 13 17
JVERSION
Engine: j902/j32/android
Release-a: commercial/2020-12-24T11:35:03
Library: 9.02.08
J Android: 1.4.12/9/28
Platform: Android 32 (armeabi-v7a)
Installer: unknown
InstallPath: /storage/emulated/0/Android/data/com.jsoftware.j.android/files
Contact: www.jsoftware.com
(B=)
On Sun, Feb 21, 2021, 1:53 PM 'Sergey' via Programming <
[email protected]> wrote:
Hi!
I am glad that in version 9.02 verbs are now executed from right to left,
which corresponds to the logic of J.
However, in my opinion, the order of passing arguments to the right verb
(see_arg in my example)
also needs to be changed for the logic of J.
see_arg =: dyad : 0
NB. See argument order
echo x, y
x + y
)
Today:
7 ] F:. see_arg 1 2 3 4
1 7
2 8
3 10
4 13
8 10 13 17
The proposed order is more logical: left ini value goes to left argument
and right array values going to right argument of verb:
7 ] F:. see_arg 1 2 3 4
7 1
8 2
10 3
13 4
8 10 13 17
Sergey.
On Sun, 21 Feb 2021 07:28:44 -0600, Julian Fondren <
[email protected]> wrote:
There's " https://code.jsoftware.com/wiki/Vocabulary/quotem
Common use #2, to make a constant verb out of a noun.
(_."_)`2:`3:@.] i:2
2 3 _. 2 3
Hi Julian,
thanks for the hint! This does exactly what I was looking for.
Regards,
Thomas
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