The July issue of Linux Journal (#39) will be printed 14 May 1997 and will be mailed from the printers on 16 May 1997. Subscription orders received by 3:00 pm PDT Monday, 5 May 1997 will start with issue #39. Call during normal West Coast business hours at 206-782-7733. TABLE OF CONTENTS LINUX JOURNAL JULY 1997 FEATURES Analyzing Circuits with SPICE on Linux Designing many of today's circuits would be impossible without the aid of Spice---the Simulation Program with Integrated Circuit Emphasis. by Kevin Cosgrove, P.E. Linux Out of the Real World Plant experiments run by Linux ride the space shuttle. by Sebastian Kuzminsky An Introduction to IC Design Under Linux Linux becomes a platform that can be used to create real-world, working chips when freely available tools are used in concert. by Toby Schaffer and Alan W. Glaser Porting Scientific and Engineering Programs to Linux One can compile scientific and engineering code under Linux using free FORTRAN 77 options. by Charles T. Kelsey IV and Gary L. Masters NEWS & ARTICLES Letter to Bob: Configuring an Intel Linux System by Jon ``maddog'' Hall Octave: A Free, High-Level Language for Mathematics by Malcolm Murphy CeBIT by Belinda Frazier Send Your Smile By E-Mail by Frank Pilhofer Programming with the XForms Library, Part 1 by Thor Sigvaldason WWWsmith At the Forge: Creating a Multiple Choice Quiz System, Part 3 How to modify a quiz created with HTML and CGI. by Reuven M. Lerner Registering in the U.S. Domain (For Free) by R. K. Owen COLUMNS Letters to the Editor From the Publisher: Is Linux Reliable Enough? Stop the Presses: Linux Expo Linux Means Business: MYDATA's Industrial Robots Linux Gazette: Clueless at the Prompt Take Command: wc Product Review: Microstation 95 for Linux Book Review: Learning the bash Shell Book Review: Source Code Secrets: The Basic Kernel The Best of Tech Support New Products DIRECTORIES Consultants Directory Advertisers Index Marketplace REFERENCES What's It? Linux Journal is carried by some newsstands (including all Computer Literacy stores in Silicon Valley) and is delivered to newsstands by a newsstand distributor. If you know a place that sells magazines that you feel should stock LJ, send e-mail to dist@ssc.com or have them call SSC at 206-782-7733. Getting LJ on newsstands is one of the best ways we can show the non-Internet crowd that Linux is for real. Subscriptions are: US$22/year U.S. US$27/year Canada US$32/year Foreign US$39/2 years U.S. US$49/2 years Canada US$54/2 years Foreign Linux Journal P.O. Box 85867 Seattle, WA 98145-1867 Fax: +1 206-782-7191 Tel: +1 206-782-7733 E-mail: subs@ssc.com URL: http://www.ssc.com/lj/ Our public key (for encrypting your credit card number) is available by fingering info@ssc.com. Subscriptions begin with the *upcoming* issue. Back issues are available (except for Issues #1, #3, #4, #5, #7 and #30, we're out) for $5 each, or $7 each non-North American airmail. ***Note: All funds should be in U.S. dollars*** Other questions/comments can be sent to: linux@ssc.com