What Gri is =========== Gri is a programming language for scientific graphics. It can make x-y graphs, contour-graphs, and image graphs. In addition, Gri has a full suite of low-level graphical elements and sufficient programming capabilities (loops, subroutines, etc) to permit complex customization. Gri is not point-click. In some ways it is analogous to TeX. Extensive power rewards tolerance of a modest learning curve. For the rest of this document, the symbol "N.N.N" will be taken to stand for the Gri version number, e.g. N.N.N might represent the version numbered 2.6.0, say. Obtaining Gri for RedHat ======================== Normally, you'll want to download the redhat package ftp://ftp.phys.ocean.dal.ca/users/kelley/gri/gri-N.N.N-1.i386.rpm (where N.N.N stands for the version number), and then install it with the standard RPM command, e.g. rpm -U gri-N.N.N-1.i386.rpm The source is also available as a gzipped tarfile and as an RPN source file. The package provides a cursory manpage, available by typing man gri at the unix prompt; the main documentation is available in "info" format, by typing info gri at the unix prompt (or through access by emacs or other facilities). Many users will find it easier to study the HTML version of the documentation, available at the local URL /usr/share/doc/gri-N.N.N/html/index.html Copyright restrictions ====================== The Gri programming languages, and all manuals and online help-files, are (c) 1991-2001 Dan E. Kelley , and covered by the GNU copyleft license.