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  2. Scientific calculator - Wikipedia

    en.wikipedia.org/wiki/Scientific_calculator

    A scientific calculator is an electronic calculator, either desktop or handheld, designed to perform calculations using basic ( addition, subtraction, multiplication, division) and complex ( trigonometric, hyperbolic, etc.) mathematical operations and functions. They have completely replaced slide rules as well as books of mathematical tables ...

  3. HP 35s - Wikipedia

    en.wikipedia.org/wiki/HP_35s

    Dimensions. 158 × 82 × 18.2 mm (6.22 × 3.23 × 0.72 in) The HP 35s (F2215A) is a Hewlett-Packard non-graphing programmable scientific calculator. Although it is a successor to the HP 33s, it was introduced to commemorate the 35th anniversary of the HP-35, Hewlett-Packard's first pocket calculator (and the world's first pocket scientific ...

  4. TI SR-50 - Wikipedia

    en.wikipedia.org/wiki/TI_SR-50

    The SR-50 was Texas Instruments ' first scientific pocket calculator with trigonometric and logarithm functions. It enhanced their earlier SR-10 and SR-11 calculators, introduced in 1973, which had featured scientific notation, squares, square root, and reciprocals, but had no trig or log functions, and lacked other features.

  5. These Calculators Make Quick Work of Standard Math ... - AOL

    www.aol.com/best-calculators-students...

    Students who need a scientific calculator should look no further than this Sharp 16-digit scientific calculator. Its most noticeable feature is a large, four-line screen that shows entered ...

  6. TI-30 - Wikipedia

    en.wikipedia.org/wiki/TI-30

    TI-30. The TI-30 is a scientific calculator manufactured by Texas Instruments, the first model of which was introduced in 1976. While the original TI-30 was discontinued in 1983 after several design revisions, TI maintains the TI-30 designation as a branding for its low and mid-range scientific calculators.

  7. Calculator - Wikipedia

    en.wikipedia.org/wiki/Calculator

    An electronic pocket calculator with a seven-segment liquid-crystal display (LCD) that can perform arithmetic operations. 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 .

  8. HP-42S - Wikipedia

    en.wikipedia.org/wiki/HP-42S

    3×1.5 V button cell batteries (Panasonic LR44, Duracell PX76A/675A or Energizer 357/303) Weight. 6 oz (170 g) Dimensions. 148×80×15 mm. The HP-42S RPN Scientific is a programmable RPN Scientific hand held calculator introduced by Hewlett-Packard in 1988. It has advanced functions suitable for applications in mathematics, linear algebra ...

  9. Calculator input methods - Wikipedia

    en.wikipedia.org/wiki/Calculator_input_methods

    Calculator input methods. There are various ways in which calculators interpret keystrokes. These can be categorized into two main types: On a single-step or immediate-execution calculator, the user presses a key for each operation, calculating all the intermediate results, before the final value is shown. [1] [2] [3]

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