free software version of MATLAB

Hi! I notice many students are using MATLAB at my school/campus, and I suspect most are pirated versions... Is there any free software version of MATLAB that I can use/suggest as an alternative? Thanks! __ Do you Yahoo!? Faith Hill - Exclusive Per

Unidentified subject!

Hi! I've installed Debian GNU/Linux 2.2r3 on my laptop via CD. Now, if Woody is released, and I'm able to get the CDs, how do I do a distribution update & upgrade? Do I simply do an "apt-cdrom add", and then "apt-get update" and "apt-get upgrade"? Anything else? "Why not do an upgrade via ftp/http