The main routines called by the user are claw1, claw2, or claw3, in one, two, or three space dimensions, respectively. The source code for these routines contains documentation on the calling sequence, and can be found in
Some documentation is available in the doc directory. In particular, see the list of contents in contents.ps or contents.ascii . See also the paper
A number of applications are in the claw/applications directory. For a list of applications and test problems currently available, see the README file in that directory.