article

Free access

Understanding arrays

Author:

James A. BrownAuthors Info & Claims

ACM SIGAPL APL Quote Quad, Volume 13, Issue 1

Pages 67 - 71

https://doi.org/10.1145/390006.802223

Published: 26 July 1982 Publication History

Abstract

Papers on general arrays, arrays of arrays, nested arrays, etc. have been in the literature since the early seventies. Many of these papers give readers the feeling that the subject is intricate and requires a large number of functions. Much of the problem was the lack of a notation for talking about such arrays. This paper will discuss a notation for arrays that contain arrays as items and show that the concept of such arrays is easy to comprehend.

References

[1]

Bernecky and Iverson, "Operators and Enclosed Arrays", 1980 APL users meeting, 319-331.

[2]

Brown, J.A., "A Generalization of APL", Doctoral Thesis, 1971, Dept. of Computing and Information Science, Syracuse University. New York, Clearing House 74h004942 AD-770488.

[3]

Brown, J.A., "APL Language Extensions", Proceedings of SEAS 1978 anniversary meeting, Stresa, Italy, Vol. 1, pp. 335-353.

[4]

Quad, Vol. 9, No. 4 - part 1, June, 1979, pp. 148-155. {Br3} Brown, J.A., "Evaluating Extensions to APL", APL Quote Quad, Vol. 9, No. 4 - part 1, June, 1979, pp. 148-155. {Ch1} Cheney, "Nested arrays reference manual", STSC 1981

Digital Library

[5]

Ghandour, Z. and Mezei J., "General Arrays, Operators and Functions", IBM Journal or Research and Development, Vol. 17, no. 4, July, 1973.

[6]

Gull, W.E. and Jenkins, M.A., "Recursive Data Structures in APL", CACM vol. 22, no. 4, Feb. 1979, pp.79-96.

Digital Library

[7]

Haegi, H.R., "The Extension of APL to Treelike Data Structures", APL Quote Quad, Vol. 7, no.2.

Digital Library

[8]

Iverson, K.E., "Operators and Functions", IBM Research report #7091, Yorktown Heights New York.

[9]

Mercer, R., "Extensions of APL to include Arrays of Arrays", University Computing Center Report, University of Mass., Amherst.

[10]

More, T., "Notes on the Development of a Theory of Arrays". Philadelphia Scientific Center report 320-3016, May 1973.

[11]

More, T., "Notes on the Axioms for a Theory of Arrays", Philadelphia Scientific Center report 320-3017, May 1973.

[12]

More, T., "Axioms and Theorems for a Theory of Arrays", IBM Journal of Research and Development, Vol. 17, no. 2, 1973.

Digital Library

[13]

More, T., "A Theory of Arrays with Applications to Databases", IBM Cambridge Scientific Center report G320-2107, Sept 1975.

[14]

More, T., "Types and Prototypes in a Theory of Arrays", IBM Cambridge Scientific Center report g320-2112, May 1976.

[15]

Smith, R., "Nested arrays, Operators and Functions", APL 81 Proceedings, 286-290.

Digital Library

Cited By

More T(2019)Transfinite nesting in array-theoretic figures, changes, rigs, and arms. Part IACM SIGAPL APL Quote Quad10.1145/166198.16621924:1(170-184)Online publication date: 28-Feb-2019
https://dl.acm.org/doi/10.1145/166198.166219
More T(1993)Transfinite nesting in array-theoretic figures, changes, rigs, and arms. Part IProceedings of the international conference on APL10.1145/166197.166219(170-184)Online publication date: 1-Sep-1993
https://dl.acm.org/doi/10.1145/166197.166219
Naugle RSchlam JKallin S(1984)Polyvalent functions, operators, strand notation and their precedenceProceedings of the international conference on APL10.1145/800058.801106(247-254)Online publication date: 11-Jun-1984
https://dl.acm.org/doi/10.1145/800058.801106
Show More Cited By

Index Terms

Understanding arrays
1. Information systems
  1. Information storage systems
    1. Record storage systems
2. Software and its engineering
  1. Software notations and tools
    1. General programming languages
      1. Language types

Recommendations

Understanding arrays
APL '82: Proceedings of the international conference on APL

Papers on general arrays, arrays of arrays, nested arrays, etc. have been in the literature since the early seventies. Many of these papers give readers the feeling that the subject is intricate and requires a large number of functions. Much of the ...
A search-free DOA estimation algorithm for coprime arrays

Recently, coprime arrays have been in the focus of research because of their potential in exploiting redundancy in spanning large apertures with fewer elements than suggested by theory. A coprime array consists of two uniform linear subarrays with inter-...
Super nested arrays: Sparse arrays with less mutual coupling than nested arrays
2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
In array processing, mutual coupling between sensors has an adverse effect on the estimation of parameters (e.g., DOA). Sparse arrays, such as nested arrays, coprime arrays, and minimum redundancy arrays (MRAs), have reduced mutual coupling compared to ...

Comments

Please enable JavaScript to view thecomments powered by Disqus.

Information & Contributors

Information

Published In

cover image ACM SIGAPL APL Quote Quad

ACM SIGAPL APL Quote Quad Volume 13, Issue 1

September 1982

380 pages

ISSN:0163-6006

DOI:10.1145/390006

Editors:
W. H. Janko
Univ. Karlsruhe, Karlsruhe, Germany
,
W. Stucky
Univ. Karlsruhe, Karlsruhe, Germany

Issue’s Table of Contents

APL '82: Proceedings of the international conference on APL
July 1982
396 pages
ISBN:0897910788
DOI:10.1145/800071
Chairmen:
M. Bergen,
W. H. Janko,
C. O. Köhler,
K. Waller

Copyright © 1982 Author.

Publisher

Association for Computing Machinery

New York, NY, United States

Publication History

Published: 26 July 1982

Published in SIGAPL Volume 13, Issue 1

Check for updates

Qualifiers

Article

Contributors

Other Metrics

View Article Metrics

Bibliometrics & Citations

Bibliometrics

Article Metrics

4
Total Citations
View Citations
369
Total Downloads

Downloads (Last 12 months)47
Downloads (Last 6 weeks)10

Reflects downloads up to 16 Nov 2024

Other Metrics

View Author Metrics

Citations

Cited By

More T(2019)Transfinite nesting in array-theoretic figures, changes, rigs, and arms. Part IACM SIGAPL APL Quote Quad10.1145/166198.16621924:1(170-184)Online publication date: 28-Feb-2019
https://dl.acm.org/doi/10.1145/166198.166219
More T(1993)Transfinite nesting in array-theoretic figures, changes, rigs, and arms. Part IProceedings of the international conference on APL10.1145/166197.166219(170-184)Online publication date: 1-Sep-1993
https://dl.acm.org/doi/10.1145/166197.166219
Naugle RSchlam JKallin S(1984)Polyvalent functions, operators, strand notation and their precedenceProceedings of the international conference on APL10.1145/800058.801106(247-254)Online publication date: 11-Jun-1984
https://dl.acm.org/doi/10.1145/800058.801106
Naugle RSchlam J(1984)Polyvalent functions, operators, strand notation and their precedenceACM SIGAPL APL Quote Quad10.1145/384283.80110614:4(247-254)Online publication date: 1-Jun-1984
https://dl.acm.org/doi/10.1145/384283.801106

View Options

View options

PDF

View or Download as a PDF file.

eReader

View online with eReader.

Login options

Check if you have access through your login credentials or your institution to get full access on this article.

Full Access

Get this Publication

Media

Figures

Other

Tables

View Issue’s Table of Contents