🚀 go-pugleaf

Certified Scientific Software's UNIX-based C-PLOT serves a wide range
of laboratory data handling needs, from quick plots of raw data,
through analysis and fitting, to generation of publication-ready
plots.

Currently installed at major university, industrial and national phy-
sics laboratories, C-PLOT is an affordable, time-saving way to bring
the power of UNIX to bear on your data analysis and presentation
needs. The software is flexible enough to accommodate both sophisti-
cated programmers and relative computer novices.

C-PLOT's features include:

   * Publication-quality plots on HP-GL pen plotters and laser
     printers. With its large library of ready-made filters, C-PLOT
     supports most popular dot-matrix printers, graphics terminals and
     other graphics devices.
   * Interactive use or batch mode. Command files for batch operation
     allow variable argument substitution and can be created with any
     UNIX text editor.
   * Multiple and inset plots with variable plotting window size.
   * Greek, math and foreign characters, superscript and subscript in
     8 fonts.  Control height, width, tilt and rotation of text in all
     fonts.
   * On-line help files.
   * Plot an unlimited number of points.
   * Data entry from ASCII files or from the keyboard. C-PLOT will
     digitize data from any HP-GL plotter or it can receive data
     through its user function facility.
   * Runs well on small or large computers.

C-PLOT's commands are simple one- or two-letter mnemonics. Users can
generate plots with as few as two commands, or they can use the
program's data analysis, plot design and text-formatting facilities to
tailor data presentation to the most complex specifications.  Experi-
enced users can enter command qualifiers on the same line as the com-
mand, otherwise C-PLOT will list options and prompt for the needed
parameters.

C-PLOT's graphic data editor, suited to most video terminals, lets
users insert, modify and delete points as they are displayed on a
low-resolution plot. C-PLOT's text formatting procedures share many of
the control sequences of troff, the standard UNIX text formatter. The
size and position of text can be changed with simple commands.

Among C-PLOT's powerful data analysis capabilities are a number of
built-in functions and tools for creating user-defined functions.
These include:

   * Nonlinear least squares fitting to your model (using the Mar-
     quardt algorithm).
   * Fast Fourier transforms.
   * Cubic spline interpolator.
   * Histogram maker.
   * Data calculator.
   * A bridge to UNIX shell commands.
   * A user function facility that lets you create your own data col-
     lecting and processing routines and integrate them with C-PLOT.
     C-PLOT will automatically create files containing prototype sub-
     routines; after you add your code, it will compile, link and run
     the functions.

The C-PLOT package includes a 100-page manual and is available immedi-
ately for many UNIX systems (call for those not listed), including:

   * VENIX on IBM XT/AT and compatible computers, with support for
     CGA, EGA and Hercules graphics
   * VENIX on DEC PDP 11 and DEC PRO computers,
   * DEC ULTRIX and Berkeley 4.2/4.3 UNIX on all VAX and MicroVax sys-
     tems and
   * UNIX on Sun computers.

Prices start at $500.

Contact Certified Scientific Software at
P.O. Box 3245, Church Street Station, New York, NY 10008, or call
617-576-1610 or 718-768-5669.

{seismo!harvard,genrad!mit-eddie}!cybvax0!vcvax1!gerry