Template:APLFN5

    ∇ {{{1}}}
[1]    {{{2}}}
[2]    {{{3}}}
[3]    {{{4}}}
[4]    {{{5}}}
[5]    {{{6}}}
    ∇

This template is used to list an APL function having 5 lines. If this wiki adds the Parserfunction feature, this template will be replaced by a generic one.

This allows you to list the contents of a function without having to include the line numbers and the ∆ prefix and suffix. You just list the header and the 5 lines. Like this:

{{APLFN5|K←Header arg1
|'Line1'
|X←0
|rhoresult ← ⍴ X
|⍝ one more line
|K ←1}}

Test 1

    ∇ {{{1}}}
[1]    {{{2}}}
[2]    {{{3}}}
[3]    {{{4}}}
[4]    {{{5}}}
[5]    {{{6}}}
    ∇

And you get:
    ∇ K←Header arg1
[1]   'Line1'
[2]   X←0
[3]   rhoresult ← ⍴ X
[4]   ⍝ one more line
[5]   K ←1
    ∇