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  2. PFD allowance - Wikipedia

    en.wikipedia.org/wiki/PFD_allowance

    PFD allowance in work systems is the adjustment done to the normal time to obtain the standard time for the purpose of recovering the lost time due to personal needs, fatigue, and unavoidable delays. [1]

  3. Sinclair Scientific - Wikipedia

    en.wikipedia.org/wiki/Sinclair_Scientific

    For example, (1+2) × 3 could be calculated as: C 1 + 2 + 3 × to give the result of 9.0000 00 (9.0000 × 10 0, or 9). The C key performs a clear; pressing it sets the calculator to a state with zero in the internal registers.

  4. HP 35s - Wikipedia

    en.wikipedia.org/wiki/HP_35s

    The calculator uses its logic to attempt to isolate the value of the required variable, after prompting the user for the values of the other variables. Since this process takes time, and the equation may have more than one solution, it is guided by two "guesses" which it assumes to have been provided by the user, in the stack's X register, and ...

  5. Mean time between failures - Wikipedia

    en.wikipedia.org/wiki/Mean_time_between_failures

    The Mil-HDBK-217 reliability calculator manual in combination with RelCalc software (or other comparable tool) enables MTBF reliability rates to be predicted based on design. A concept which is closely related to MTBF, and is important in the computations involving MTBF, is the mean down time (MDT). MDT can be defined as mean time which the ...

  6. RPL (programming language) - Wikipedia

    en.wikipedia.org/wiki/RPL_(programming_language)

    HP 48G calculator, uses RPL RPL [5] is a handheld calculator operating system and application programming language used on Hewlett-Packard 's scientific graphing RPN (Reverse Polish Notation) calculators of the HP 28 , 48 , 49 and 50 series, but it is also usable on non-RPN calculators, such as the 38 , 39 and 40 series.

  7. Calculator - Wikipedia

    en.wikipedia.org/wiki/Calculator

    The first American-made pocket-sized calculator, the Bowmar 901B (popularly termed The Bowmar Brain), measuring 5.2 by 3.0 by 1.5 inches (132 mm × 76 mm × 38 mm), came out in the Autumn of 1971, with four functions and an eight-digit red LED display, for US$240, while in August 1972 the four-function Sinclair Executive became the first ...

  8. Juergen Dormann - Pay Pals - The Huffington Post

    data.huffingtonpost.com/paypals/juergen-dormann

    From January 2008 to April 2008, if you bought shares in companies when Juergen Dormann joined the board, and sold them when he left, you would have a 12.7 percent return on your investment, compared to a -5.3 percent return from the S&P 500.

  9. 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.