Thumbnail
Access Restriction
Subscribed

Author More, Trenchard
Source ACM Digital Library
Content type Text
Publisher Association for Computing Machinery (ACM)
File Format PDF
Language English
Subject Domain (in DDC) Computer science, information & general works ♦ Data processing & computer science
Abstract The extended abstract below outlines the main points of a more complete paper in preparation. The purpose of the paper is to trace seven lines of development that have carried array theory from some of its original questions through a succession of intermediate answers to current suggestions for a more coherent theory. The paper explains the algebraic motivations for the theory and how and why the treatment of empty arrays in the Nested Interactive Array Language, Nial, differ from that in APL2. The paper introduces modular indexing, indexing from the end of an axis with negative indices, arrays viewed as tori, arithmetical and Boolean operations on non-numbers and nontruth values, and a purely structural operation underlying reshaping.
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1988-12-01
Publisher Place New York
Journal ACM SIGAPL APL Quote Quad (APLQ)
Volume Number 20
Issue Number 4
Page Count 5
Starting Page 274
Ending Page 278


Open content in new tab

   Open content in new tab
Source: ACM Digital Library