Scilab is governed by the CeCILL license respecting the rules of distribution of free software. Please read the terms of this license before downloading Scilab. Read the license
Windows XP, Vista, 7, 8
The 32-bit release works on all supported Windows OSs;
the 64-bit is for Windows 64-bit only, with better performances.
Mac OS X
(Intel platforms only)
For Yosemite, pick the Mac OS X 10.10 version,
and install Java 6 (http://support.apple.com/kb/DL1572)