1. A program for typesetting graphs This is grap, an implementation of Kernighan and Bentley's grap language for typesetting graphs. The grap preprocessor works with pic and troff (or groff). Grap is a language for describing graphical displays of data. It provides such services as automatic scaling and labeling of axes, and for statements, if statements, and macros to facilitate user programmability. Grap is intended primarily for including graphs in documents prepared with groff or TeX, and is only marginally useful for elementary tasks in data analysis. From Debian 3.0r0 APT