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  2. List of algorithms - Wikipedia

    en.wikipedia.org/wiki/List_of_algorithms

    An algorithm is fundamentally a set of rules or defined procedures that is typically designed and used to solve a specific problem or a broad set of problems.. Broadly, algorithms define process(es), sets of rules, or methodologies that are to be followed in calculations, data processing, data mining, pattern recognition, automated reasoning or other problem-solving operations.

  3. Complex number - Wikipedia

    en.wikipedia.org/wiki/Complex_number

    A complex number can be visually represented as a pair of numbers (a, b) forming a vector on a diagram called an Argand diagram, representing the complex plane. Re is the real axis, Im is the imaginary axis, and i is the "imaginary unit", that satisfies i 2 = −1.

  4. Matrix (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Matrix_(mathematics)

    Then the behavior of the electronic component can be described by B = H · A, where H is a 2 x 2 matrix containing one impedance element (h 12), one admittance element (h 21), and two dimensionless elements (h 11 and h 22). Calculating a circuit now reduces to multiplying matrices.

  5. Logistic regression - Wikipedia

    en.wikipedia.org/wiki/Logistic_regression

    This exponential relationship provides an interpretation for : The odds multiply by for every 1-unit increase in x. [ 22 ] For a binary independent variable the odds ratio is defined as a d b c {\displaystyle {\frac {ad}{bc}}} where a , b , c and d are cells in a 2×2 contingency table .

  6. History of computing hardware - Wikipedia

    en.wikipedia.org/wiki/History_of_computing_hardware

    The first of three programs written for the machine found the highest proper divisor of 2 18 (262,144), a calculation that was known would take a long time to run—and so prove the computer's reliability—by testing every integer from 2 18 − 1 downwards, as division was implemented by repeated subtraction of the divisor.

  7. 7×57mm Mauser - Wikipedia

    en.wikipedia.org/wiki/7×57mm_Mauser

    [8] [9] This lower specification is in deference to the Remington Rolling block rifles that may still be in circulation. Concerns regarding the early Mauser rifles such as the models 93 and 95 are misplaced, [ 9 ] as the original ammunition issued with the M93 Spanish Mauser produced an average pressure of 50,370 CUP in those rifles.

  8. Cancer - Wikipedia

    en.wikipedia.org/wiki/Cancer

    The corresponding relative risk is 1.5 for lung cancer, [81] and 1.9 for prostate cancer. [82] For breast cancer, the relative risk is 1.8 with a first-degree relative having developed it at 50 years of age or older, and 3.3 when the relative developed it when being younger than 50 years of age. [83]

  9. List of countries by minimum wage - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by...

    None; US$2.65 per hour for employment with the national government; all states have a minimum hourly wage for government workers: US$2.00 in Pohnpei, US$1.25 in Chuuk, US$1.42 in Kosrae, and US$1.60 in Yap; US$1.75 for private sector workers in Pohnpei.