grace is an plotting tool for workstations or X-terminals using X. A few of
its features are:

    * User defined scaling, tick marks, labels, symbols, line styles, colors.
    * Batch mode for unattended plotting.
    * Read and write parameters used during a session.
    * Polynomial regression, splines, running averages, DFT/FFT,
	cross/auto-correlation.
    * Hardcopy support for PostScript, HP-GL, and FrameMaker .mif format.

While grace has a convenient point-and-click interface, most parameter settings
and operations are available through a command line interface (found in
Data/Commands).

grace is the successor of the well known xmgr plotting tool!

Known PROBLEMS:

  - GD-1.3 library of Thomas Boutell:
	* patterned fills of ellipses make Grace crash
	* complex polygons are filled incorrectly sometimes

  - PDFlib-0.6 library of Thomas Merz
	* patterned fills are not implemented
	* bitmapped text strings are not transparent