0. This software is offered as is without any guarantee whatsoever that
   it works as advertised
   Read the copyright notice in file copy.
A. To compile do
  % make all

  or 
  % make mall
   To create executable moption for multiplicative binomial tree
   valuations.

  % make gall
   To create executable goption for general additive binomial tree
   valuations.

B. To run
   type 
  % moption horizon-size <data-file

  where
   moption can be substituted with goption
   horizon-size is N the intervals you want to use in the valuation.
   Example data-files are  mdata, mdata1, mdata2.
   A description appers in in data.eg
   Note that the command-line horizon-size is REQUIRED, as the
   number in the fifth line of the data-file (supposed to be N) is
   IGNORED.
   

   In a data-file for goption , the last two lines are replaced
   by one, the volatility of the asset.
