|Operating system||CP/M; MS-DOS; VMS|
An improvement over VisiCalc, SuperCalc was notable for being one of the first spreadsheet programs capable of iteratively solving circular references (cells that depend on each other's results). It would be over 10 years after the introduction of SuperCalc before this feature was implemented in Microsoft Excel, although in Lotus 1-2-3, manual programming of iterative logic could also be used to solve this issue. According to the SuperCalc product manager, iterative calculations were added when Sorcim changed from BCD to Binary math. Since the precision of the two math packages was different, some IF statements resolved differently, and iterative calculations helped solve this problem.
Versions of SuperCalc were later released for the Apple II family, for PCs running DOS, and, after Sorcim was bought by CA Technologies (CA) in the mid-1980s, for MS Windows (under the name CA-SuperCalc).
By the release of version 3 in March 1987, a million users were claimed.
This product is no longer available from CA Technologies.
- Wally Feigenson's Blog http://feigenson.us/blog/?p=10
- C+VG magazine "Extra Bits", issue 65, page 96 http://www.worldofspectrum.org/showmag.cgi?mag=C+VG/Issue065/Pages/CVG06500096.jpg
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