On Wed, 20 Jul 2011, hadi motamedi wrote: > If we cannot find the exact application name for centos, say MATLAB > for centos does not exist, so we must search for 'Mathematics > laboratory for centos' ? Or if Pspice for centos does not exist so we > must search for 'Electronics circuit schematics editor and simulator > for centos' ? If there any reference site that we can select centos > application with respect to their functionality deffinition but not > just the application name? Stop googling for CentOS. If you're looking for commercial packages, they'll either claim to support Redhat or just linux, but they're very unlikely to mention CentOS. But this problem isn't linux specific. How do you find matlab-like software for windows? jh