Raymond P. Polivka – författare

This book is designed for people with a working knowledge of APL who would like to increase their fluency in the wide range of extra facilities offered by second-generation APL products. Although the primary product in view is IBM's APL2 as implemented on mainframe, PC and RS/6000, the language fea­ tures covered share considerable common ground with APL *PLUS II and Oyalog APL. This is a book about skills rather than knowledge, and an acquaintance with some variety of APL on the reader's part is assumed from the start. It is designed to be read as a continuous text, interspersed with exer­ cises designed to give progressively deeper insight into what the authors conceive as the features which have the greatest impact on programming techniques. It would also be suitable as a text-book for a second course in APL2, although experience suggests that most programming language learning is now by self­ study, so that this volume is more likely to provide follow-up reading to more elementary texts such as "APL2 at a Glance" by Brown, Pakin and Polivka. Material is discussed more informally than in a language manual - in this book textual bulk is in proportion to difficulty and importance rather than to the extent of technical details. Indeed, some APL2 extensions are not covered at all where the technicalities pose no great problems in understanding and can be readily assimilated from the language manuals.

This book is designed for people with a working knowledge of APL who would like to increase their fluency in the wide range of extra facilities offered by second-generation APL products. Although the primary product in view is IBM''s APL2 as implemented on mainframe, PC and RS/6000, the language fea­ tures covered share considerable common ground with APL *PLUS II and Oyalog APL. This is a book about skills rather than knowledge, and an acquaintance with some variety of APL on the reader''s part is assumed from the start. It is designed to be read as a continuous text, interspersed with exer­ cises designed to give progressively deeper insight into what the authors conceive as the features which have the greatest impact on programming techniques. It would also be suitable as a text-book for a second course in APL2, although experience suggests that most programming language learning is now by self­ study, so that this volume is more likely to provide follow-up reading to more elementary texts such as "APL2 at a Glance" by Brown, Pakin and Polivka. Material is discussed more informally than in a language manual - in this book textual bulk is in proportion to difficulty and importance rather than to the extent of technical details. Indeed, some APL2 extensions are not covered at all where the technicalities pose no great problems in understanding and can be readily assimilated from the language manuals.

Dieses Buch ist eine Einführung in APL2, eine Erweiterung und Verallgemeinerung der Programmiersprache APL. APL2 ist eine ideale Programmiersprache zur Lösung kommerzieller, technischer und wissenschaftlicher Probleme in einer interaktiven Rechnerumgebung. Dieses Buch konzentriert sich auf die Datenstrukturen und Programmiertechniken, die zur Lösung derartiger Probleme erforderlich sind. Es wird gezeigt, wie man APL2 zur Verwaltung von Daten, zur Modellierung von Rechnerarchitekturen, zur Beschreibung komplexer Zusammenhänge und zur Lösung von Gleichungen einsetzen kann. APL2 - Ein erster Einblick stellt APL2 vor und dokumentiert seine herausragenden Eigenschaften (insbesondere die Verwendung geschachtelter Strukturgrößen und definierter Operatoren). Das Buch ist in acht Kapitel aufgeteilt; jedes enthält zahlreiche Beispiele, mit denen der behandelte Stoff veranschaulicht wird. Zusätzlich enthält jedes Kapitel Übungsaufgaben, die der Leser zur Vertiefung und Festigung des Gelernten durcharbeiten sollte. Gleichgültig, ob Sie ein Neuling oder ein erfahrener Programmierer sind, Sie werden die besondere Akzentuierung der Darstellung der Sprache und ihrer Anwendung schätzen lernen. Dieses Buch ist eine solide Grundlage für einen guten Programmierstil in APL2.