Binary package “gri-pdf-doc” in ubuntu oracular

PostScript manual for gri, a language for scientific graphics

 Gri is a command-driven application for making x-y graphs, contour-graphs,
 and image graphs.
 .
 This is the Gri manual in PDF format suitable for printing or viewing
 on-screen. The compressed file is located at /usr/share/doc/gri/gri.pdf.gz