APL
( a programming language )
This language is crazy
Enter Kenneth E. Iverson
Relic found in ancient Mayan ruins
A pointless language
- Write-only
- Short programs, probably about 1 LOC
- "Keywords" are symbols
Basics
Some stuff
> 5 + 5
10
> 5 × 5
25
> 1 2 3 + 5
6 7 8
> 1 2 3 + 5 6 7
6 8 10
Some stuff ( part 2)
> ⍳10
1 2 3 4 5 6 7 8 9 10
> + / ⍳10
50
> 2 2 ⍴ 3 4 5 6
3 4
5 6
> ? 10
8 # any random number between 0 to 10
> 6 ? 10
3 10 4 6 8 9
Even more stuff
[name]←[expression]
> throws ← 500 ? 1000
> throws
944 783 954 279 440 812 624 797 173 ...
> + / throws
257597
> + / 500> throws
243
> + / 500< throws
256
Operators
Where can I learn more?
classes are like ~£2k a day per person
The end
"There are three things a man must do before his life is done; Write two lines in APL, And make the buggers run." -- Stan Kelly-Bootle, 'The Devil's DP Dictionary'
life ← { ⊃ 1 ω ∨ . ∧ 3 4 = +/ +⌿ 1 0 ‾1 ∘.θ 1 - ‾1 Φ″ ⊂ ω }