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== Modifying Abacus ==
 
== Modifying Abacus ==
 
Abacus is under GPL license. You are free to use it and learn with it. You are also encouraged to modify it to suit your needs or just for a further opportunity to learn.
 
Abacus is under GPL license. You are free to use it and learn with it. You are also encouraged to modify it to suit your needs or just for a further opportunity to learn.
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* It might be good to have some of the above information in a Help palette, e.g., addition, subtraction, multiplication division.
    
Most changes can be confined to three modules: <code>AbacusActivity.py</code>, <code>abacus.py</code> and <code>abacus_window.py</code>. The former define the Sugar and GNOME toolbars; the latter defines what code is executed by each type of abacus.
 
Most changes can be confined to three modules: <code>AbacusActivity.py</code>, <code>abacus.py</code> and <code>abacus_window.py</code>. The former define the Sugar and GNOME toolbars; the latter defines what code is executed by each type of abacus.