Re: [Bug-apl] Feature suggestion: multiple function arguments

[Louis de Forcrand]

That would be a great idea. However, it would indeed take not only quite a bit of

time to set up, but would also need constant checking to make sure the updates

in the main branch don’t conflict with additions.

While I just said that I believe the main branch should probably concentrate on

the standard, one of the things I’ve really fallen in love with in J and that is

completely missing in standard APL is tacit definition. Not only does it allow

inversible functions and idiom detection for optimisation, but it is just simply

so elegant:

mean ← +⌿ ÷ ≢

Louis

On 05 Mar 2016, at 16:19, Elias Mårtenson <address@hidden> wrote:

On 5 March 2016 at 23:09, Louis de Forcrand <address@hidden> wrote:

While talking about features to add, instead of introducing a new function header

style, IMHO a new local assignment function would be more useful.

For example, instead of typing

∇Z←X F Y;A;B;C

to declare local variables, instead one would simply type

∇Z←X F Y

and then assign variables A, B, and C using the local assignment arrow.

This would apply to the previously discussed header as:

∇multi a

(a1 a2 a3)⍅a

…

I have thought about creating an alternative branch where these things can be experimented with. Unfortunately I haven't had the time, and I also haven't thought of any extensions that are so incredibly cool that I absolutely have to out and implement them. :-)

Regards,

Elias