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  2. Floating-point error mitigation - Wikipedia

    en.wikipedia.org/wiki/Floating-point_error...

    Huberto M. Sierra noted in his 1956 patent "Floating Decimal Point Arithmetic Control Means for Calculator": [1] Thus under some conditions, the major portion of the significant data digits may lie beyond the capacity of the registers. Therefore, the result obtained may have little meaning if not totally erroneous.

  3. Pascaline - Wikipedia

    en.wikipedia.org/wiki/Pascal's_calculator

    Pascaline (also known as the arithmetic machine or Pascal's calculator) is a mechanical calculator invented by Blaise Pascal in 1642. Pascal was led to develop a calculator by the laborious arithmetical calculations required by his father's work as the supervisor of taxes in Rouen , France. [ 2 ]

  4. Calculator - Wikipedia

    en.wikipedia.org/wiki/Calculator

    By 1970, a calculator could be made using just a few chips of low power consumption, allowing portable models powered from rechargeable batteries. The first handheld calculator was a 1967 prototype called Cal Tech, whose development was led by Jack Kilby at Texas Instruments in a research project to produce a portable calculator. It could add ...

  5. Gaussian elimination - Wikipedia

    en.wikipedia.org/wiki/Gaussian_elimination

    Now through application of elementary row operations, find the reduced echelon form of this n × 2n matrix. The matrix A is invertible if and only if the left block can be reduced to the identity matrix I; in this case the right block of the final matrix is A −1. If the algorithm is unable to reduce the left block to I, then A is not invertible.

  6. Percentage - Wikipedia

    en.wikipedia.org/wiki/Percentage

    A pie chart showing the percentage by web browser visiting Wikimedia sites (April 2009 to 2012). In mathematics, a percentage (from Latin per centum 'by a hundred') is a number or ratio expressed as a fraction of 100.

  7. Barrett reduction - Wikipedia

    en.wikipedia.org/wiki/Barrett_reduction

    In modular arithmetic, Barrett reduction is an algorithm designed to optimize the calculation of [1] without needing a fast division algorithm.It replaces divisions with multiplications, and can be used when is constant and <.

  8. I increased my salary from $38,000 to nearly $3 million in 20 ...

    www.aol.com/increased-salary-38-000-nearly...

    The Redditor didn't stop growing their income after surpassing $1 million per year. After earning $1.45 million in 2023, the Redditor proceeded to earn $3.0 million in 2024.

  9. Log reduction - Wikipedia

    en.wikipedia.org/wiki/Log_reduction

    Log reduction is a measure of how thoroughly a decontamination process reduces the concentration of a contaminant.It is defined as the common logarithm of the ratio of the levels of contamination before and after the process, so an increment of 1 corresponds to a reduction in concentration by a factor of 10.

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