I recently bought a mac and I want to install this program for my research but I can't figure out how to install the program according to the instruction. Could someone help me? The program is called Surface Evolver and it is used to compute minimal surface energy given an initial shape. http://www.susqu.edu/brakke/evolver/html/install.htm The instruction for installing the program on Mac OSX is copied down here Detailed instructions: 1. Download Evolver230-OSX.tar.gz. 2. The download probably created a folder Evolver230-OSX on your desktop. This folder really has a unix path something like /Users/yourname/Evolver230-OSX. These notes will mostly refer to the terminal command line, so you should be able to open a terminal and use a command line prompt. 3. The Evolver230-OSX folder has the executable file evolver, the samples folder fe, the documentation folder doc, a PDF version of the manual, and a man page evolver.1. 4. Move the executable to some place on your PATH, e.g. cp evolver /Users/yourname/bin or add the Evolver folder to your PATH. Question: How to move the executable to my PATH? How to add the folder to PATH? 5. You should also create an environment variable EVOLVERPATH containing paths to the fe and doc folders by placing the following line in your shell initialization file, with appropriate modifications. You can tell which shell you are running by running the ps command at the command prompt. C Shell (csh, tcsh): put the following in /Users/yourname/.cshrc or /Users/yourname/.tcshrc: setenv EVOLVERPATH /Users/yourname/Evolver230-OSX/fe:/Users/yourname/Evolver230-OSX/doc Bourne shell (sh,bash): put the following in /Users/yourname/.profile or /Users/yourname/.bashrc: EVOLVERPATH=/usr/you/evolver/fe:/usr/you/evolver/doc export EVOLVERPATH Question: I have absolutely no idea what they are talking about here.. 6. Install the man page by copying evolver.1 to some place on your manpath, e.g. cp evolver.1 /usr/share/man/man1 You may have to become root to have permission to do this. Question: What is a man page? 7. Test by opening a new shell and running "evolver cube". Now you should be able to follow the tutorials in the HTML manual or printed manual. 8. If you wish to compile your own version of the Evolver, and have a C compiler, then follow the unix instructions. Thank you very much for helping.