Calc2 version 1.2
Calc2 version 1.2 
is a Windows-based application that combines a full-featured calculator with a unique 26-column tape, the CalcSheet. The CalcSheet lets calculus students plug in new values for "what if" analyses, fix mistakes, use references to previous values, add comments and fonts, arrange calculations in multiple columns, print and save.
Calc2 toggles between a standard and scientific calculator, has a fully editable display, memory functions and parentheses to simplify the entry of complex calculations. Students can use this feature by itself or with the CalcSheet. Either way, all calculations are stored in the CalcSheet for easy review, modification, annotation and formatting. Calculations can also be included in word processing files, presentation documents or any OLE-compatible files. Quantoid Inc., Round Rock, TX, www.calc2.net.
This article originally appeared in the 04/01/2002 issue of THE Journal.