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  2. Absolute value - Wikipedia

    en.wikipedia.org/wiki/Absolute_value

    The graph of the absolute value function for real numbers The absolute value of a number may be thought of as its distance from zero.. In mathematics, the absolute value or modulus of a real number, denoted | |, is the non-negative value of without regard to its sign.

  3. Glossary of mathematical symbols - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_mathematical...

    A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula.

  4. Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Main_Page

    James Madison (1751–1836) was a Founding Father of the United States and its fourth president, serving from March 4, 1809, to March 4, 1817.Dubbed the "Father of the Constitution" for his role in creating the U.S. Constitution, he had been dissatisfied with the weak government under the Articles of Confederation, and helped organize the Constitutional Convention of 1787.

  5. Mathematics - Wikipedia

    en.wikipedia.org/wiki/Mathematics

    Mathematics is a field of study that discovers and organizes methods, theories and theorems that are developed and proved for the needs of empirical sciences and mathematics itself.

  6. Absolute space and time - Wikipedia

    en.wikipedia.org/wiki/Absolute_space_and_time

    Originally introduced by Sir Isaac Newton in Philosophiæ Naturalis Principia Mathematica, the concepts of absolute time and space provided a theoretical foundation that facilitated Newtonian mechanics. [3]

  7. Mean absolute error - Wikipedia

    en.wikipedia.org/wiki/Mean_absolute_error

    This page was last edited on 16 February 2025, at 18:40 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.

  8. Absolute zero - Wikipedia

    en.wikipedia.org/wiki/Absolute_zero

    Zero kelvin (−273.15 °C) is defined as absolute zero.. Absolute zero is the coldest point on the thermodynamic temperature scale, a state at which the enthalpy and entropy of a cooled ideal gas reach their minimum value.

  9. Absolute scale - Wikipedia

    en.wikipedia.org/wiki/Absolute_scale

    Absolute scales are used when precise values are needed in comparison to a natural, unchanging zero point. Measurements of length, area and volume are inherently absolute, although measurements of distance are often based on an arbitrary starting point.