text:       double precision pi
        parameter(pi=3.1415926535897932)
        double precision jumpeps
        parameter(jumpeps=2.d-5)
        double precision pace,err
        parameter(pace=0.05,err=0.2d0)
  	  double precision dimx,dimy	! domain size
  	  parameter(dimx=2*pi,dimy=2*pi)
        integer ndimx,ndimy,winnum	! domain dimensions and maximal window size
        parameter(ndimx=229,ndimy=301,winnum=15)
  