Surface Plotter 1.20 released, together with my new homepage The URL of Surface Plotter changed to http://home.ml.org/yanto/java/surface/surface.html
  Surface Plotter 1.20 completed.
  Surface manipulation routines were rewritten. Little changes in user interface
  Now supports up to two functions to be displayed simultaneously.
  min, max, atan2, mod were added into built-in functions
  
Bug in Surface Plotter 1.10 function parser found and fixed
  Surface Plotter 1.10 released
  Completely rewritten from its previous version, 1.04. 
  Almost all user interface routines were rewritten from scratch, using better Java programming approach. 
  Relational operators, boolean operators, and 
  "if" function were added. 
  
Surface Plotter 1.02 was rated top 25% Web Applet by JARS
  Surface Plotter 1.04 released
  Plus minus buttons for edit boxes were added
  
A bug in Surface Plotter 1.02 fixed
  Surface Plotter 1.02 released
  Application window size was made resizable. Submission to JARS
  
  Surface Plotter 1.01 completed
  Box scaling function was added.Can be run as an application too, but at a fixed window size
 
  not released (not yet)
  
  Surface Plotter 1.0 completed
  The first version of Surface Plotter. Many, many bugs
  not released (of course)