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  2. Little Professor - Wikipedia

    en.wikipedia.org/wiki/Little_Professor

    The Little Professor is a backwards-functioning calculator designed for children ages 5 to 9. Instead of providing the answer to a mathematical expression entered by the user, it generates unsolved expressions and prompts the user for the answer.

  3. Windows Calculator - Wikipedia

    en.wikipedia.org/wiki/Windows_Calculator

    A simple arithmetic calculator was first included with Windows 1.0. [6]In Windows 3.0, a scientific mode was added, which included exponents and roots, logarithms, factorial-based functions, trigonometry (supports radian, degree and gradians angles), base conversions (2, 8, 10, 16), logic operations, statistical functions such as single variable statistics and linear regression.

  4. Software calculator - Wikipedia

    en.wikipedia.org/wiki/Software_calculator

    GNOME Calculator, a software calculator. A software calculator is a calculator that has been implemented as a computer program, rather than as a physical hardware device. They are among the simpler interactive software tools, and, as such, they provide operations for the user to select one at a time. They can be used to perform any process that ...

  5. HP-16C - Wikipedia

    en.wikipedia.org/wiki/HP-16C

    The HP-16C Computer Scientist is a programmable pocket calculator that was produced by Hewlett-Packard between 1982 and 1989. It was specifically designed for use by computer programmers, to assist in debugging. It is a member of the HP Voyager series of programmable calculators. It was the only programmer's calculator ever produced by HP ...

  6. Qalculate! - Wikipedia

    en.wikipedia.org/wiki/Qalculate!

    Qalculate! supports common mathematical functions and operations, multiple bases, autocompletion, complex numbers, infinite numbers, arrays and matrices, variables, mathematical and physical constants, user-defined functions, symbolic derivation and integration, solving of equations involving unknowns, uncertainty propagation using interval arithmetic, plotting using Gnuplot, unit and currency ...

  7. Hewlett-Packard 9100A - Wikipedia

    en.wikipedia.org/wiki/Hewlett-Packard_9100A

    The Hewlett-Packard 9100A (HP 9100A) is an early programmable calculator [3] (or computer), first appearing in 1968. HP called it a desktop calculator because, as Bill Hewlett said, "If we had called it a computer, it would have been rejected by our customers' computer gurus because it didn't look like an IBM. We therefore decided to call it a ...

  8. Play Canasta Online for Free - AOL.com

    www.aol.com/games/play/masque-publishing/canasta

    Canasta. Play free online Canasta. Meld or go out early. Play four player Canasta with a friend or with the computer. By Masque Publishing

  9. Programma 101 - Wikipedia

    en.wikipedia.org/wiki/Programma_101

    Stop the computer to let the user introduce data in the M register or to use the machine manually as a calculator D-R exchange RS Store the D register temporarily in the R register; this is a special instruction used in multi-card program to save data from the deletion that happens while reading a new card