A MATLAB-like mATrix-oriented programming language/toolbox. RLaB focusses on creATing a good experimental environment (or laborATory) in which to do mATrix mAThemATics. Currently RLaB has numeric scalars and mATrices (real and complex), and string scalars, and mATrices. RLaB also contains a list variable type, which is a heterogeneous associATive array. Version 0.95 includes an interpreter, libraries and documentATion. E-mail: Ian Searle . . Requires GNUPLOT, lib[IF]77.a (from f2c). Ported to many plATforms including Unix, OS/2, Amiga. (1993-10-27).