XL is designed to implement the ideas of Concept Programming. It can apply to many domains and problem spaces, not only a small subset of the problems users must solve.

The eXtensible Language: easy to use, multi-syntax, portable set of APIs to create CLI and GUI applications for Unix/X11 and Win32; will ease making big applications, has interpreter/compiler/debugger. [Open Source, GPL]

Download of UMCS-92-4-3.

Describes basic elements (data, actions, tunings, voids, mixtures, ...) and principles of programming (stratification, implicit knowledge, limited freedom, ...), directed to amalgamating different programming paradigms (imperative, object-oriented, fu...

PI based COmposition LAnguage: research language to explore the paradigm: Application = Components + Scripts. From the University of Berne.

NIAL, Nested Interactive Array Language, mixes aspects of functional array and procedural languages. Rich primitives set makes it easy, fast to code loop-free data-driven algorithms. Also Q'Nial IDE, and Nial Data Engine embeddable interpreter. [Open ...

Brief description, language list sorted by count and supported paradigms. [Wikipedia]

At Leibniz Laboratory, Grenoble, France; research topics, news, publications, members. [English and French]

Usenix Paper discussing multiparadigm programming as part of a larger topic.

Makes K, advanced vector oriented, functional language, one of the fastest application development environments (according to Bell Laboratories Benchmarking), and allows very fast processing of large datasets.