APL Wiki
Older Versions of APL
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Overview
This page is for documenting examples of older versions of APL. This is primarily for nostalgic reasons.
APL \ 1130
A simulator is available for APL \ 1130. User KymFarnik has a build that uses 2741 emulation and Teraterm and is available here IBM1130 Simulator with APL \ 1130. Note that APL \ 1130 was quite limited, eg. arrays could only have two dimensions and vectors were limited to 255 items.
The IBM 1130 was a small engineering computer that was as close to a PC as was available at that time. There are a few IBM 1130's still maintained by enthusiasts today. There is an IBM 1130 resource site that has a wealth of information.
A copy of the student primer is available as a scanned PDF.
Here is a sample of APL \ 1130 code implementing Conway's Game of Life
∇LIFE[⎕]∇
[0] NG←LIFE CG;W
[1] W←CG+(¯1⊖CG)+(1⊖CG)+(¯1⌽CG)+(1⌽CG)
[2] W←W+(1⊖1⌽CG)+(¯1⊖1⌽CG)+(1⊖¯1⌽CG)+(¯1⊖¯1⌽CG)
[3] NG←(3=W)+(CG∧4=W)
∇
RP←5 5⍴0 0 0 0 0 0 0 1 1 0 0 1 1 0 0 0 0 1 0 0
RP
0 0 0 0 0
0 0 1 1 0
0 1 1 0 0
0 0 1 0 0
0 0 0 0 0
LIFE RP
0 0 0 0 0
0 1 1 1 0
0 1 0 0 0
0 1 1 0 0
0 0 0 0 0
LIFE LIFE RP
0 0 1 0 0
0 1 1 0 0
1 0 0 1 0
0 1 1 0 0
0 0 0 0 0
APL\360
APL\360 was the first implementation of APL in 1968 that ran on an IBM 360.
APL\360 User Manual by Adin Falkoff and Ken Iverson
APL\360 Primer by Paul Berry
Remembering APL Article about early APL\360