Help for Running JSTOICH

Optional actions may be performed by clicking on an item in the menu bar of the applet window as follows:

• Options:
  • Enter zero values:
    instead of entering 0 values for element subscripts, only the non-zero ones need be entered; this option fills in the remaining entries with zeros.
    
• Delete:
  • Clear all matrix entries:
    All the species formulas are erased from the table.
  • Clear all entries:
    The species names and formulas, and the element names are erased from the table.
  • Species:
    A row in the table is deleted corresponding to the selected species.
  • Element:
    A column in the table is deleted corresponding to the selected element.
    
• Add:
  • Species :
    A row in the table is added for an additional species
  • Element :
    A column in the table is added for an additional element
    
• Help:
  • Displays this file.
    
• Exit:
  • The Java applet is terminated.
    
    

Some Additional Hints:

• After entering each element name, pressing the Enter key will move the cursor to the next element.
  
  
• The cursor (arrow) keys allow you to move around the cells of the table for the species and element names, and their formulas.
  
  
• For a system involving charged species, enter a symbol for the protonic charge as a system element (e.g., "p") and enter the signed charge of each species in the corresponding column of the table for its formula; e.g., for H+ the charge is 1; for OH-, the charge is -1. The charge entry for neutral species is 0.
  
  
• You can save the output windows of the applet to a file in the usual way. For example, to insert CRS output into a wordprocessor (e.g., Word or WordPerfect) in Windows, do the following:

1. When the appropriate window of the applet is active (as indicated by the highlighted bar at its top), press Alt-Print Scrn to copy its contents to the Windows Clipboard.
2. In the wordprocessor, place the cursor at the desired location and press Control-V.

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