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  2. Fast inverse square root - Wikipedia

    en.wikipedia.org/wiki/Fast_inverse_square_root

    Lighting and reflection calculations, as in the video game OpenArena, use the fast inverse square root code to compute angles of incidence and reflection.. Fast inverse square root, sometimes referred to as Fast InvSqrt() or by the hexadecimal constant 0x5F3759DF, is an algorithm that estimates , the reciprocal (or multiplicative inverse) of the square root of a 32-bit floating-point number in ...

  3. Approximate Bayesian computation - Wikipedia

    en.wikipedia.org/wiki/Approximate_Bayesian...

    A number of heuristic approaches to the quality control of ABC have been proposed, such as the quantification of the fraction of parameter variance explained by the summary statistics. [21] A common class of methods aims at assessing whether or not the inference yields valid results, regardless of the actually observed data.

  4. LibreOffice - Wikipedia

    en.wikipedia.org/wiki/LibreOffice

    LibreOffice (/ ˈ l iː b r ə /) [11] is a free and open-source office productivity software suite, a project of The Document Foundation (TDF). It was forked in 2010 from OpenOffice.org, an open-sourced version of the earlier StarOffice.

  5. Integrated circuit design - Wikipedia

    en.wikipedia.org/wiki/Integrated_circuit_design

    The user may use a variety of languages and tools to create this description. Examples include a C/C++ model, VHDL, SystemC, SystemVerilog Transaction Level Models, Simulink, and MATLAB. RTL design: This step converts the user specification (what the user wants the chip to do) into a register transfer level (RTL) description. The RTL describes ...

  6. Microsoft Excel - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Excel

    In the figure, the fraction 1/9000 is displayed in Excel. Although this number has a decimal representation that is an infinite string of ones, Excel displays only the leading 15 figures. In the second line, the number one is added to the fraction, and again Excel displays only 15 figures. In the third line, one is subtracted from the sum using ...

  7. Bell Labs - Wikipedia

    en.wikipedia.org/wiki/Bell_Labs

    Bell Labs [b] is an American industrial research and development (R&D) company, currently operating as a subsidiary of Finnish technology company Nokia.With a long history, Bell Labs is credited with the development of radio astronomy, the transistor, the laser, the photovoltaic cell, the charge-coupled device (CCD), information theory, the Unix operating system, and the programming languages ...

  8. Airbus A220 - Wikipedia

    en.wikipedia.org/wiki/Airbus_A220

    The A220 manufacturer states that the structural technology, aerodynamic design, ultra-high bypass GTF engine, and state-of-the-art flight control and systems together can save fuel burn per seat, CO 2 and NOx emissions, [204] [205] as well as provide a reduction in maintenance costs and operating cost per seat, plus a reduced noise footprint ...

  9. Convolutional neural network - Wikipedia

    en.wikipedia.org/wiki/Convolutional_neural_network

    This is the idea behind the use of pooling in convolutional neural networks. The pooling layer serves to progressively reduce the spatial size of the representation, to reduce the number of parameters, memory footprint and amount of computation in the network, and hence to also control overfitting. This is known as down-sampling.