[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Bug-apl] IOTA
From: |
Christian Robert |
Subject: |
[Bug-apl] IOTA |
Date: |
Tue, 1 Mar 2016 20:57:30 -0500 |
User-agent: |
Mozilla/5.0 (Windows NT 10.0; WOW64; rv:38.0) Gecko/20100101 Thunderbird/38.6.0 |
I have this function,
∇IOTA[⎕]∇
∇
[0] z←IOTA v
[1] z←⍳↑v
[2] v←1↓,v
[3] Loop: →(0=⍴v)/0
[4] z←z∘.,⍳↑v
[5] v←1↓v
[6] →Loop
∇
]boxing 24
IOTA 0
┌⊖┐
│0│
└─┘
IOTA 10
┌10──────────────────┐
│1 2 3 4 5 6 7 8 9 10│
└────────────────────┘
IOTA 2 3
┌3────────────────┐
2┌2──┐ ┌2──┐ ┌2──┐│
││1 1│ │1 2│ │1 3││
│└───┘ └───┘ └───┘│
│┌2──┐ ┌2──┐ ┌2──┐│
││2 1│ │2 2│ │2 3││
│└───┘ └───┘ └───┘│
└∊────────────────┘
IOTA 2 3 5
┌5──────────────────────────────────────┐
2┌3────┐ ┌3────┐ ┌3────┐ ┌3────┐ ┌3────┐│
││1 1 1│ │1 1 2│ │1 1 3│ │1 1 4│ │1 1 5││
3└─────┘ └─────┘ └─────┘ └─────┘ └─────┘│
│┌3────┐ ┌3────┐ ┌3────┐ ┌3────┐ ┌3────┐│
││1 2 1│ │1 2 2│ │1 2 3│ │1 2 4│ │1 2 5││
│└─────┘ └─────┘ └─────┘ └─────┘ └─────┘│
│┌3────┐ ┌3────┐ ┌3────┐ ┌3────┐ ┌3────┐│
││1 3 1│ │1 3 2│ │1 3 3│ │1 3 4│ │1 3 5││
│└─────┘ └─────┘ └─────┘ └─────┘ └─────┘│
│ │
│┌3────┐ ┌3────┐ ┌3────┐ ┌3────┐ ┌3────┐│
││2 1 1│ │2 1 2│ │2 1 3│ │2 1 4│ │2 1 5││
│└─────┘ └─────┘ └─────┘ └─────┘ └─────┘│
│┌3────┐ ┌3────┐ ┌3────┐ ┌3────┐ ┌3────┐│
││2 2 1│ │2 2 2│ │2 2 3│ │2 2 4│ │2 2 5││
│└─────┘ └─────┘ └─────┘ └─────┘ └─────┘│
│┌3────┐ ┌3────┐ ┌3────┐ ┌3────┐ ┌3────┐│
││2 3 1│ │2 3 2│ │2 3 3│ │2 3 4│ │2 3 5││
│└─────┘ └─────┘ └─────┘ └─────┘ └─────┘│
└∊──────────────────────────────────────┘
my question is: can such a function can be written in Lambda style ?
(especially in gnuapl)
eg:
IOTA ← { ... }
That IOTA function simulate the behavior of "⍳" on "Dyalog APL" and NARS2000
and more interpretors when the argument is a vector.
thanks,
Xtian.
- [Bug-apl] IOTA,
Christian Robert <=
- Re: [Bug-apl] IOTA, Elias Mårtenson, 2016/03/01
- Re: [Bug-apl] IOTA, Elias Mårtenson, 2016/03/01
- Re: [Bug-apl] IOTA, Christian Robert, 2016/03/01
- Re: [Bug-apl] IOTA, Jay Foad, 2016/03/02
- Re: [Bug-apl] IOTA, Elias Mårtenson, 2016/03/02
- Re: [Bug-apl] IOTA, Nick Lobachevsky, 2016/03/02
- Re: [Bug-apl] IOTA, Jay Foad, 2016/03/03
- Re: [Bug-apl] IOTA, Elias Mårtenson, 2016/03/03
- Re: [Bug-apl] IOTA, Jay Foad, 2016/03/03
- Re: [Bug-apl] IOTA, Juergen Sauermann, 2016/03/03