
                           Welcome to PC-ECAP
                              Version 3.02

    Revision History

    Version 3.02 - 4/14/98
    European format may now be specified for most scale factors.
    Analysis speed has been improved a bit more.  Contact and
    ordering information has been updated to include our web site
    and new address.

    Version 3.01 - 1/24/94
    Some Super VGA cards using Western Digital 90C30 or 90C31
    chips have a bug in their video BIOS.  This causes PC-ECAP
    to hang on program startup.  A work around has been added
    to solve this problem.  Added /v and /vm switches to force
    640x480 graphics modes.  Also added the tab key to editor.

    Version 3.00 - 11/01/93
    Added Transient analysis calculations.  Added transmission
    lines as circuit elements.  Added zoom and print features to
    plot screen.  Added support for HP DeskJets.  Improved
    support for HP LaserJet Series I.  Now displays more digits
    of frequency when plotting narrow band high frequency
    graphs.  Analysis routine is now 40-100% faster.

    Version 2.10a - 8/18/93
    In certain rare situations, graphs would autoscale improperly.
    Fixed.

    Version 2.10 - 11/09/92
    Now handles circuits with up to 90 nodes.  Added option to
    print only circuit description and graphs.  Negative
    inductor values are now accepted.  Changed listing format
    for frequencies of 10 GHz and above.  Added network (LAN)
    support.  Fixed "border flash" when switching from graphics
    to text mode on some CGA cards.  Added table of contents to
    manual.

    Version 2.01 - 2/03/92
    Improved syntax checking on the circuit description files.
    More input errors are spotted and flagged.

    Version 2.00 - 10/14/91
    Added group delay, impedance, VSWR and return loss
    calculations.  Now has full support for 24 pin printers.
    Now supports HP LaserJet.  Editor has been enhanced.
    Analysis routine is now twice as fast as previous versions.
    Added AT&T and MCGA support.  Added support for a math
    coprocessor.  European format for element values now
    accepted.  Improved error checking on circuit description
    files.  International time and date on printouts now
    supported.  Numbers are now stored in IEEE binary format.
    No longer supports "non-compatible" video.  Now requires
    384K of system memory.

    Version 1.11 - 11/23/90
    Added the filename to the headers and plot sheet of the
    printout.  Negative resistance values are now accepted.
    Fixed bug in hard copy plotting routine - plot would display
    spurious points if the plot exceeded the maximum range.
    Fixed bug in analysis routine; Occasionally, a circuit with
    a very wide range of reactive component values could create
    an internal numeric overflow.

    Version 1.10 - 9/14/90
    Added the option of 35 sample points to the select number of
    sample points menu.  Greatly increased the number of plot
    ranges available when displaying results.  Magnitude now
    spans .1 db/div to 80 db/div and Phase now spans 22.5
    degrees/div to 720 degrees/div.

    Version 1.02 - 1/30/90
    First release widely distributed.

