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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/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 <Dan.Kelley@Dal.CA>, and covered by
the GNU copyleft license.
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