% see the top of the int_fact_KdV.m file to see what the following mean.
>> t_0 = 0; t_f = .015; dt = .00001; NPrint = 30; N = 256*16;
>> [u,x,t,kk,amp] = int_fact_KdV(t_0,t_f,dt,NPrint,N);
>> whos
  Name         Size                   Bytes  Class

  N            1x1                        8  double array
  NPrint       1x1                        8  double array
  amp       4095x31                 1015560  double array
  dt           1x1                        8  double array
  kk           1x4095                 32760  double array
  t            1x31                     248  double array
  t_0          1x1                        8  double array
  t_f          1x1                        8  double array
  u         4097x31                 1016056  double array
  x         4097x1                    32776  double array

Grand total is 262180 elements using 2097440 bytes