SuperCalc<p><strong>SuperCalc </strong>was a <a href="https://en.wikipedia.org/wiki/Spreadsheet">spreadsheet</a> application published in 1980 for the <a href="https://en.wikipedia.org/wiki/CP/M">CP/M</a> operating system. An improvement over <a href="https://en.wikipedia.org/wiki/VisiCalc">VisiCalc</a>, SuperCalc was notable for being one of the first spreadsheet programs capable of iteratively solving <a href="https://en.wikipedia.org/wiki/Circular_reference">circular references </a>(cells that depend on each other's results).</p>