Plus42 1.1.10

Plus42 is an advanced scientific programmable calculator that is based on Free42, which is a comprehensive re-implementation of the HP-42S scientific programmable RPN calculator manufactured by Hewlett-Packard from 1988 to 1995. Free42 is a complete rewrite and does not contain any HP code.

Plus42 enhances Free42 by incorporating several additional features, including algebraic expressions resembling those used on the HP-27S and HP-17B/19B calculators, attached units and unit conversions similar to those found on the HP-48/49/50 series, directories for better organization of programs and variables, a larger display with 8 rows and 22 columns (131x64 pixels) by default, which can be resized according to user preference.

Moreover, Plus42 also provides time value of money and amortization schedules functionalities, as well as two-dimensional plotting capabilities for functions. This plotting feature allows users to zoom in and out, pan across the plot, and even find integrals and roots based on specific points.