Ganesh, Octave is a very good option, opensource and easy to understand. It is worthy to spend some time with it You can also use Python, a very powerful programming environment (and you will learn to do many other things with it). I recommend you installing not the latest version, but 2.7 (it has more available resources). Once you are familiar with Python (which can take you less than one week), you can start to use different libraries, like Matplotlib, that will let you know the same as Matlab, or even more. Just Google for "Python vs Matlab" and terms like that. You will have many opensource and free options at your hand. Best of luck, Jorge Jorge Ginés Geologist, MSc Fugro NPA Limited Telephone: +44 (0) 1732 865023 / Fax: +44 (0) 1732 866521 E-mail: [log in to unmask] <mailto:[log in to unmask]> / Website: www.fugro-npa.com <http://www.fugro-npa.com/> Crockham Park, Edenbridge, Kent TN8 6SR, United Kingdom From: Tectonics & structural geology discussion list [mailto:[log in to unmask]] On Behalf Of Christina Plattner Sent: 23 February 2011 14:23 To: [log in to unmask] Subject: Re: hi Ganesh, there is a free MATLAB-similar software called octave. Check that one out, good luck. Christina On Feb 23, 2011, at 8:46 AM, ganesh joshi wrote: Hello everybody, I am a student of geology from Nepal. I am searching easy and cheap software package for practice. Can anyone suggest me which is the best software package for geodynamic numerical modeling? Can anybody help me to get free Matlab or ANSYS software packages for practice? I am glad to get your idea. Thank you! Ganesh ************************************************************ Dr. Christina Plattner Postdoctoral Associate University of Miami Rosenstiel School of Marine and Atmospheric Sciences Marine Geology and Geophysics 4600 Rickenbacker Causeway Miami, FL, 33149 United States Phone: (001) 305 421 4690 E-mail: [log in to unmask] ************************************************************