Software Review: Risk Calc— a Software Tool for Interval-Valued and Fuzzy Arithmetic

Risk Calc is a software package which extends basic arithmetic, mathematical and logical functions to cover interval-valued and fuzzy numbers. It is available from Applied Biomathematics in Setauket, New York, who have developed and market a wide range of ecological and environmental health software. Risk Calc runs on a PC compatible under Windows 3.1 or later, and needs about 1 Mb of free disk space to install.