The 1.0.0.3 version of Supercalc is provided as a free download on our website. The program relates to Education Tools. The actual developer of the program is Dragon Empire.
From the developer:
SuperCalc is a powerful alternative to the standard calculator that comes with Windows. SuperCalc also includes a powerful expression evaluator that allows you to enter entire equations rather than only 1 operation at a time as on normal calculators. This more natural form of calculation entry greatly increases ease of use.
You may want to check out more software, such as StatPlus 2007, Adding Machine or GenScn, which might be related to Supercalc.