Free42

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Using Free42
Incredible RPN calculator! If you like HP calculators, this is flat out amazing! It has the same layout as the original HPs. It even runs the same programs. Free42 is a software clone of the Hewlett-Packard 42S calculator. If you know how to use an HPS, you know how to use Free If you're new to the HPS. Free42 provides a number of functions for working with times and dates, and getting the current time and date from the system's real-time clock. These functions.