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  2. Economic order quantity - Wikipedia

    en.wikipedia.org/wiki/Economic_order_quantity

    Economic order quantity. Economic order quantity ( EOQ ), also known as financial purchase quantity or economic buying quantity, [citation needed] is the order quantity that minimizes the total holding costs and ordering costs in inventory management. It is one of the oldest classical production scheduling models.

  3. Economic batch quantity - Wikipedia

    en.wikipedia.org/wiki/Economic_batch_quantity

    Economic batch quantity. In inventory management, Economic Batch Quantity (EBQ), also known as Optimum Batch Quantity (OBQ) is a measure used to determine the quantity of units that can be produced at the minimum average costs in a given batch or product run. EBQ is basically a refinement of the economic order quantity (EOQ) model to take into ...

  4. Order of operations - Wikipedia

    en.wikipedia.org/wiki/Order_of_operations

    Order of operations. In mathematics and computer programming, the order of operations is a collection of rules that reflect conventions about which operations to perform first in order to evaluate a given mathematical expression. These rules are formalized with a ranking of the operations.

  5. Mathematical optimization - Wikipedia

    en.wikipedia.org/wiki/Mathematical_optimization

    Mathematical optimization. Graph of a surface given by z = f ( x, y) = − ( x ² + y ²) + 4. The global maximum at ( x, y, z) = (0, 0, 4) is indicated by a blue dot. Nelder-Mead minimum search of Simionescu's function. Simplex vertices are ordered by their values, with 1 having the lowest ( best) value. Mathematical optimization ...

  6. Sample size determination - Wikipedia

    en.wikipedia.org/wiki/Sample_size_determination

    Sample size determination or estimation is the act of choosing the number of observations or replicates to include in a statistical sample. The sample size is an important feature of any empirical study in which the goal is to make inferences about a population from a sample. In practice, the sample size used in a study is usually determined ...

  7. List of optics equations - Wikipedia

    en.wikipedia.org/wiki/List_of_optics_equations

    Visulization of flux through differential area and solid angle. As always ^ is the unit normal to the incident surface A, = ^, and ^ is a unit vector in the direction of incident flux on the area element, θ is the angle between them.

  8. Lanchester's laws - Wikipedia

    en.wikipedia.org/wiki/Lanchester's_laws

    Lanchester's laws are mathematical formulas for calculating the relative strengths of military forces. The Lanchester equations are differential equations describing the time dependence of two armies' strengths A and B as a function of time, with the function depending only on A and B. [ 1][ 2] In 1915 and 1916 during World War I, M. Osipov [ 3 ...

  9. Well-ordering principle - Wikipedia

    en.wikipedia.org/wiki/Well-ordering_principle

    Well-ordering principle. In mathematics, the well-ordering principle states that every non-empty subset of nonnegative integers contains a least element. [ 1] In other words, the set of nonnegative integers is well-ordered by its "natural" or "magnitude" order in which precedes if and only if is either or the sum of and some nonnegative integer ...

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