Introduction to Contributed Articles

Transcribed from the printed issue; not yet reviewed. Read it in the PDF of the issue, page 117

See the APL-86 section (page 77) for our main technical article this issue which is a transcript of Alan Graham’s APL86 talk entitled ‘Idioms and Problem Solving in APL2’. Alan works for IBM at their Santa Teresa laboratory in California. If you are new to APL2 or an old hand, this profound but eminently understandable foray into the uses of the language will be of interest. Many thanks are due to John Sullivan for his accurate transcription of both text and APL from Alan’s talk and visual materials.

David Ziemann is Technical Officer on the I-APL committee, and is responsible for the production of the technical specification of the proposed interpreter. The current technical specification is published here for the first time. Please send any technical comments or suggestions directly to the author.

David Piper is fast becoming a regular contributor to VECTOR. This time he shows us how he has used APL2 language features to create a set of efficient QSAM and BDAM file access functions in a TSO environment. The APL2 code from David’s offering in the last VECTOR was accidentally omitted, and so we have appended it to the end of his article.