BS ISO/IEC 13751:2001

1 Scope
2 Normative References
3 Form of this International Standard
  3.1 Form of Definitions
  3.2 Named Arrays in Examples
  3.3 Notes
  3.4 Cross-References
  3.5 General Definitions
4 Compliance
  4.1 Conforming Implementations
  4.2 Conforming Programs
5 Definitions
  5.1 Characters
  5.2 Numbers
  5.3 Objects
  5.4 Evaluation Sequences
  5.5 Other Terms
6 Syntax and Evaluation
  6.1 Introduction
  6.2 Reduce-Statement
  6.3 The Phrase Evaluators
  6.4 The Form Table
7 Scalar Functions
  7.1 Monadic Scalar Functions
  7.2 Dyadic Scalar Functions
8 Structural Primitive Functions
  8.1 Introduction
  8.2 Monadic Structural Primitive Functions
  8.3 Dyadic Structural Primitive Functions
9 Operators
  9.1 Introduction
  9.2 Monadic Operators
10 Mixed Functions
   10.1 Monadic Mixed Functions
   10.2 Dyadic Mixed Functions
11 System Functions
   11.1 Introduction
   11.2 Definitions
   11.3 Diagram
   11.4 Niladic System Functions
   11.5 Monadic System Functions
   11.6 Dyadic System Functions
12 System Variables
   12.1 Definition
   12.2 Evaluation Sequences
13 Defined Functions
   13.1 Introduction
   13.2 Definitions
   13.3 Diagrams
   13.4 Operations
   13.5 Function editing
14 Shared Variables
   14.1 Informal introduction
   14.2 Definitions
   14.3 Diagrams
   14.4 Operations
   14.5 Shared variables system functions
15 Formatting and numeric conversion
   15.1 Introduction
   15.2 Numeric conversion
   15.3 Diagrams
   15.4 Operations
16 Input and Output
   16.1 Introduction
   16.2 Definitions
   16.3 Diagrams
   16.4 Operations
17 System commands
   17.1 Introduction
   17.2 Definitions
   17.3 Diagrams
   17.4 Operations
   17.5 Diagrams and evaluation sequences
Annex A (normative) Component files
        A.1 Definitions of arguments and results
        A.2 Definition of functions
        A.3 Errors

Describes the programming language APL and the environment in which APL programs are executed. Its purpose is to facilitate interchange and promote portability of APL programs and programming skills. Gives the syntax and semantics of APL programs and the characteristics of the environment in which APL programs are executed.