Dear David, Thanks for downloading Firedrake. Firedrake is a python package, not an executable, so one would not expect to type "firedrake" on the Python command line. First, you need to ensure that python will see your installed Firedrake. If you installed using the install script, then you have to source the activate script for the Python virtualenv in which the script lives. If your shell is in the top directory of your firedrake install, the command to do this is: . ./bin/activate note the first . which is important. Once you have done this, then from the python (preferably ipython) shell, you can "from firedrake import *" and you are good to go. You probably want to start by trying some of the tutorials at http://firedrakeproject.org/documentation.html For future support requests, please use the firedrake mailing list, to which I have copied this answer. You'll need to subscribe at https://mailman.ic.ac.uk/mailman/listinfo/firedrake Regards, David On Tue, 24 Nov 2015 at 13:52 Angwenyi David <kipkoej@gmail.com> wrote:

Dear sir,

I am doctoral student of Prof. Dr. Sebastian Reich, Universität Potsdam. We have been trying to install and run firedrake. It has been installed successfully but I seemingly cannot start it off by typing ‘firedrake’ at the Python command line; or rather, when I do try it this way, I get a feedback: command not found. Could you please advise.

Thanks in advance.

Angwenyi David