Hi Vinod MTT is not an Octave package. It is a collection of scripts that will run on a Linux (or UNIX) system, that makes use of Octave and other software, such as Reduce, to perform some of its functions. If you do not normally use a Linux system, then you may find that the easiest way to run MTT would be to run Debian in a Virtual Machine (e.g. VMWare or VirtualBox) and then install the .deb file that can be downloaded from Sourceforge. Geraint On Tue, 25 Jun 2019 10:59:33 -0000 "Vinod" vinodh@users.sourceforge.net...