>> [X,Y,Z]=peaks(50);
>> whos
  Name      Size                   Bytes  Class

  X        50x50                   20000  double array
  Y        50x50                   20000  double array
  Z        50x50                   20000  double array

Grand total is 7500 elements using 60000 bytes

>> surf(X,Y,Z)
>> shading('interp')
>> shading('faceted')
>> clear
>> pwd
ans =
/Users/pershing/Documents/Courses/CS402-Viz
>> load Lecture05/NWtopex.mat
>> whos
  Name      Size                   Bytes  Class

  SSH      31x66                   16368  double array
  ans       1x43                      86  char array
  lat       1x31                     248  double array
  lon       1x66                     528  double array
  rkb     256x3                     6144  double array

Grand total is 2954 elements using 23374 bytes

>> surf(lon,lat,SSH);
>> clf
>> pcolor(lon,lat,SSH);
>> view(3)