Calcoo is a scientific calculator (with both RPN and algebraic modes) designed to provide maximum usability. Version 2 of Calcoo is written in Java, which is a much more modern computer language than C used for version 1 of Calcoo. To run Calcoo, you need a recent version of Java, at least Java SE 7 (also known as "Version 7" or "1.7"). You may already have Java installed on your machine.
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