Description: Abacus 3.0 is a calculator-like interface to the formula editor that is built into MSExcel. It makes complex formulas and calculations, and especially unit conversions much simpler. Through the use of a fully customizable, drag and drop keypad, users can build their own library of conversion factors, constants and functions into a fully integrated, calculator-like interface that is much more friendly than Excel's equation editor syntax.  Free demo download 1.27 MB
 Buy full version $19.95
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