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  2. Software calculator - Wikipedia

    en.wikipedia.org/wiki/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 consists of a sequence of steps each of ...

  3. Casio graphic calculators - Wikipedia

    en.wikipedia.org/wiki/Casio_graphic_calculators

    User memory. 147.5 kilobyte RAM, 786 kilobyte Flash. Other. Power supply. 3 × CR2032 Lithium batteries. four AAA alkaline batteries with 1 × CR2032 backup battery. Weight. 155.5–213 grams. Japanese electronics company Casio produced the world's first graphing calculator, the fx-7000G.

  4. HP-35 - Wikipedia

    en.wikipedia.org/wiki/HP-35

    HP-35 calculators were carried on the Skylab 3 and Skylab 4 flights, between July 1973 and February 1974. [ 6 ] Is the first pocket calculator with a numeric range that covered 200 decades (more precise 199, ±10 ±99 ).

  5. Calculator - Wikipedia

    en.wikipedia.org/wiki/Calculator

    A modern scientific calculator with an LCD. An electronic calculator is typically a portable electronic device used to perform calculations, ranging from basic arithmetic to complex mathematics. The first solid-state electronic calculator was created in the early 1960s. Pocket-sized devices became available in the 1970s, especially after the ...

  6. TI-Nspire series - Wikipedia

    en.wikipedia.org/wiki/TI-Nspire_series

    TI-Nspire series. The TI-Nspire is a graphing calculator line made by Texas Instruments, with the first version released on 25 September 2007. [1][better source needed] The calculators feature a non- QWERTY keyboard and a different key-by-key layout than Texas Instruments's previous flagship calculators such as the TI-89 series.

  7. HP-65 - Wikipedia

    en.wikipedia.org/wiki/HP-65

    Dimensions. Length: 6.0 inches (150 mm), width: 3.2 inches (81 mm), height: 0.7–1.4 inches (18–36 mm) HP-65 in original hard case with manuals, software "Standard Pac" of magnetic cards, soft leather case, and charger. The HP-65 is the first magnetic card-programmable handheld calculator. Introduced by Hewlett-Packard in 1974 at an MSRP of ...

  8. AP Precalculus - Wikipedia

    en.wikipedia.org/wiki/AP_Precalculus

    The non-calculator section is worth 43.75% of the exam score, while the calculator section is worth 18.75%. [5] Section II of the Exam includes 4 free response questions, with 2 not allowing a calculator and 2 allowing use of a calculator. Section II is worth 37.5% of the exam score, with the non-calculator and calculator sections weighed ...

  9. Approximations of π - Wikipedia

    en.wikipedia.org/wiki/Approximations_of_π

    From the mid-20th century onwards, all improvements in calculation of π have been done with the help of calculators or computers. In 1944−45, D. F. Ferguson, with the aid of a mechanical desk calculator, found that William Shanks had made a mistake in the 528th decimal place, and that all succeeding digits were incorrect. [34] [38]

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