This is a release of classical MATLAB for Atari-ST with at least 2Mb of RAM (if you have only 1Mb, please continue reading: there's hope for you too :-) The sources are in the directory src, and are the original ones, modified to be compiled by BC Fortran, a PD Fortran compiler available at atari archive. I had to patch the code in several points to circumvent the INTEGER/CHARACTER equivalence of the old FORTRAN, which is absent in the BC compiler. The random number generator is completely new, because the original one led to an integer overflow. I used the resulting program with no errors. The program may optionally use an help file (which I advise to do); at present, it searches it in d:\lib\. It is split in two parts, which need both to be present. These files are in the lib directory of this archive. To change the location, you must edit the file src/sys.f and recompile all. For its memory needs, MATLAB uses a stack whose size is fixed at compile-time; i kept the original stack size of 50005. This allocates 50005*8*2 bytes, more or less 800Kb. If you have not enough memory, you can safely change all occurrences of the string 50005 by a lower value (25000 should work for 1Mb machines) and recompile. The replacement must be done on all files in the directory src. To recompile, you must use BC fortran. A sample makefile is provided. Remember to link the objects with the math library. Finally, the executable file in bin\ is my own copy of the program. It is packed with the unbelievable utility 'pack', also available at atari archive, which allows executables to be compressed and decompressed only at run time. As a copyright notice, I enclose a statement from the author of matlab. Please read it: MATLAB IS NOT PUBLIC DOMAIN. THIS IS A MODIFIED VERSION. For problems, suggestions and postcards, address Matteo.Frigo@dei.unipd.it Greetings from Italy.