There are two parts to the DerivaGem software: the Calculator and the Applications Builder. The Calculator is an easy-to-use tool that for valuing value a wide range of derivatives (equity options, currency options, index options, futures options, interest rate options, and credit derivatives). It produces the Greek letters (i.e hedge statistics) and can display lots of different graphs. The Applications Builder can be used to analyze portfolios of derivatives and enables instructors to develop more interesting assignment questions. (The Applications Builder requires some knowledge of Excel, the Calculator does not.)