function picreact
% function picreact
%
% This displays a picture illustrating use of the command REACT.
% Note that this will only run in Matlab versions that support the WEB
% command (Matlab 5.0 and above).  Otherwise, visit the following web site:
% http://www.owlnet.rice.edu/~ceng301/5.html#5.4
%
% Example: >> react(10,1,2)
%          uses reaction rate of 10 (mols/unit time) on stoic(1,:) to turn
%          stream 1 to stream 2
%
% Comments/Picture: TYLC, ACP
% Comments/Picture/Program: ADD
% Last updated:  May, 1997
c=version;
d = c(1:3);
e = str2num(d);
if e<5.0
  disp('Please use browser to visit:')
  disp(' http://www.owlnet.rice.edu/~ceng301/5.html#5.4')
  return
end
d = web('http://www.owlnet.rice.edu/~ceng301/5.html#5.4');
if d!0
  error('Error with web browser, go to http://www.owlnet.rice.edu/~ceng301/5.html#5.4');
end