*** NOTE *** This archive of J 4.1 for the Amiga is a BETA release. I didn't write it, I'm just posting it. KNOWN DANGERS: ============= Either of these can get your task stuck in an endless, inescapable loop: 0.1 *. 1e15 0.1 +. 1e15 These two verbs (GCD and LCM) also behave strangely in other situations; on my stock A500, I find that reverting to the WB1.2 mathieeeedoubbas.library actually helps a little. Also, the following will crash outright, sometimes too seriously to Guru: 32769 ". 0 These are, howver, pretty unreasonable things to attempt in the first place. For the most part, I've found the program to be quite solid and delightful. OTHER THINGS YOU SHOULD KNOW UP FRONT ===================================== To exit J, use control-D or control-\ . Control-C is polled only during I/O and memory allocation. So, if you embark on a lengthy calculation, you'll have to either ride it out or reboot. When you execute any DOS command from J, a temporary file will be created in your current directory. Because of the design of the language, you'll have to be more careful than usual about entering numeric constants in J: .12345 -9 **WRONG** 0.12345 _9 **RIGHT** This version of the J executable is NOT residentable. That's a C compiler foible and not an intrinsic limitation of J itself. J Runs under both WB1.3 and WB2.0; BUT if you run it by clicking on its icon under 1.3, J will open up an old-fashioned CON: window with no line editing or history. You should have at least 1M RAM. The more the better, of course. DOCUMENTATION ============= is pretty haphazard here; admittedly so. A bigger, better j.man file is in the works, but you might want order the bound manual(s) from Iverson Software Inc., whose address can be found in isiinfo.doc or readme.doc. J has been available on other platforms for a while, but the Amiga version is brand new, courtesy of Raul Deluth Miller-Rockwell , which is where I've been sending bug reports. -- Klaxon Suralis suralis@cup.portal.com 72020.625@compuserve.com April 28, 1992 Again, SEND BUG REPORTS TO rockwell@socrates.umd.edu