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  2. Grade (slope) - Wikipedia

    en.wikipedia.org/wiki/Grade_(slope)

    Grade is usually expressed as a percentage - converted to the angle α by taking the inverse tangent of the standard mathematical slope, which is rise / run or the grade / 100. If one looks at red numbers on the chart specifying grade, one can see the quirkiness of using the grade to specify slope; the numbers go from 0 for flat, to 100% at 45 ...

  3. List of mathematical abbreviations - Wikipedia

    en.wikipedia.org/wiki/List_of_mathematical...

    def – define or definition. deg – degree of a polynomial, or other recursively-defined objects such as well-formed formulas. (Also written as ∂.) del – del, a differential operator. (Also written as.) det – determinant of a matrix or linear transformation. DFT – discrete Fourier transform.

  4. Glossary of mathematical symbols - Wikipedia

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

    3. Between two groups, may mean that the first one is a proper subgroup of the second one. > (greater-than sign) 1. Strict inequality between two numbers; means and is read as "greater than". 2. Commonly used for denoting any strict order. 3. Between two groups, may mean that the second one is a proper subgroup of the first one. ≤ 1.

  5. Graded structure - Wikipedia

    en.wikipedia.org/wiki/Graded_structure

    In mathematics, the term "graded" has a number of meanings, mostly related: . In abstract algebra, it refers to a family of concepts: . An algebraic structure is said to be -graded for an index set if it has a gradation or grading, i.e. a decomposition into a direct sum = of structures; the elements of are said to be "homogeneous of degree i ".

  6. National Security Personnel System - Wikipedia

    en.wikipedia.org/wiki/National_Security...

    The National Security Personnel System (NSPS) was a pay for performance pay system created in 2004-5 under authorization by Congress for the United States Department of Defense (DoD) [1] and implemented in mid-2006.

  7. DSST (standardized test) - Wikipedia

    en.wikipedia.org/wiki/DSST_(standardized_test)

    DSST (formerly DANTES Subject Standardized Tests) are credit-by-examination tests originated by the United States Department of Defense's Defense Activity for Non-Traditional Education Support (DANTES) program.

  8. Order of operations - Wikipedia

    en.wikipedia.org/wiki/Order_of_operations

    As recently as the 1920s, the historian of mathematics Florian Cajori identifies disagreement about whether multiplication should have precedence over division, or whether they should be treated equally. The term "order of operations" and the "PEMDAS/BEDMAS" mnemonics were formalized only in the late 19th or early 20th century, as demand for ...

  9. Department of Defense Education Activity - Wikipedia

    en.wikipedia.org/wiki/Department_of_Defense...

    The Department of Defense Education Activity (DoDEA) is a federal school system headquartered in Alexandria, Virginia, [1] responsible for planning, directing, coordinating, and managing prekindergarten through 12th grade educational programs on behalf of the United States Department of Defense (DoD). DoDEA operates 163 accredited schools in 8 ...