Plus42 icon
Plus42 icon

Plus42

Plus42 is an advanced scientific programmable calculator, based on Free42. Free42, in turn, is a complete re-implementation of the HP-42S scientific programmable RPN calculator, which was made from 1988 until 1995 by Hewlett-Packard.

Plus42 screenshot 1

Cost / License

  • Pay once
  • Proprietary

Application type

Platforms

  • Mac
  • Windows
  • Linux
  • Android
  • iPhone
Plus42 screenshot 1
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  • ViCalc icon
    Kudaschov added Plus42 as alternative to ViCalc

Plus42 information

  • Developed by

    US flagThomas Okken

  • Licensing

    Proprietary and Commercial product.

  • Pricing

    One time purchase (perpetual license) that costs $10.

  • Alternatives

    50 alternatives listed

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  • Supported Languages

    • English

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What is Plus42?

Plus42 is an advanced scientific programmable calculator, based on Free42 icon Free42. Free42, in turn, is a complete re-implementation of the HP-42S scientific programmable RPN calculator, which was made from 1988 until 1995 by Hewlett-Packard. Free42 is a complete rewrite and contains no HP code whatsoever.

Plus42 builds on Free42 and adds: Algebraic expressions modeled after those used on the HP-27S and HP-17B/19B; attached units and unit conversions modeled after those used on the HP-48/49/50 series; directories for more organized storage of programs and variables; a larger display, with 8 rows and 22 columns (131x64 pixels) by default, which the user may resize at will; time value of money and amortization schedules; and two-dimensional plotting of functions, with ability to zoom and pan, and find integrals and roots from points in the plot.