Polymorphic Programming Language
Encyclopedia
The Polymorphic Programming Language (PPL) was developed in 1969 at Harvard University
by Thomas A. Standish. It is an interactive
, extensible
language with a base language similar to APL.
The '<-' (or '←') assignment
operator has played an influence in the S programming language
.
Harvard University
Harvard University is a private Ivy League university located in Cambridge, Massachusetts, United States, established in 1636 by the Massachusetts legislature. Harvard is the oldest institution of higher learning in the United States and the first corporation chartered in the country...
by Thomas A. Standish. It is an interactive
Interactive computing
In computer science, interactive computing refers to software which accepts input from humans — for example, data or commands. Interactive software includes most popular programs, such as word processors or spreadsheet applications. By comparison, noninteractive programs operate without human...
, extensible
Extensible programming
Extensible programming is a term used in computer science to describe a style of computer programming that focuses on mechanisms to extend the programming language, compiler and runtime environment. Extensible programming languages, supporting this style of programming, were an active area of work...
language with a base language similar to APL.
The '<-' (or '←') assignment
Assignment (computer science)
In computer programming, an assignment statement sets or re-sets the value stored in the storage location denoted by a variable name. In most imperative computer programming languages, assignment statements are one of the basic statements...
operator has played an influence in the S programming language
S programming language
S is a statistical programming language developed primarily by John Chambers and Rick Becker and Allan Wilks of Bell Laboratories...
.