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  2. Grid method multiplication - Wikipedia

    en.wikipedia.org/wiki/Grid_method_multiplication

    [2] [3] At the simplest level, pupils might be asked to apply the method to a calculation like 3 × 17. Breaking up ("partitioning") the 17 as (10 + 7), this unfamiliar multiplication can be worked out as the sum of two simple multiplications:

  3. Balanced number partitioning - Wikipedia

    en.wikipedia.org/wiki/Balanced_number_partitioning

    A common special case called two-way balanced partitioning is when there should be two subsets (m = 2). The two subsets should contain floor(n/2) and ceiling(n/2) items. It is a variant of the partition problem. It is NP-hard to decide whether there exists a partition in which the sums in the two subsets are equal; see [4] problem [SP12]. There ...

  4. Recursive partitioning - Wikipedia

    en.wikipedia.org/wiki/Recursive_partitioning

    Recursive partitioning is a statistical method for multivariable analysis. [1] Recursive partitioning creates a decision tree that strives to correctly classify members of the population by splitting it into sub-populations based on several dichotomous independent variables .

  5. Polygon partition - Wikipedia

    en.wikipedia.org/wiki/Polygon_partition

    In geometry, a partition of a polygon is a set of primitive units (e.g. squares), which do not overlap and whose union equals the polygon. A polygon partition problem is a problem of finding a partition which is minimal in some sense, for example a partition with a smallest number of units or with units of smallest total side-length.

  6. Largest differencing method - Wikipedia

    en.wikipedia.org/wiki/Largest_differencing_method

    When the number of items n is between k+2 and 2k, the largest sum in the LDM partition is at most () times the optimum, In all cases, the largest sum in the LDM partition is at most 4 3 − 1 3 k {\displaystyle {\frac {4}{3}}-{\frac {1}{3k}}} times the optimum, and there are instances in which it is at least 4 3 − 1 3 ( k − 1 ...

  7. Year 2 - Wikipedia

    en.wikipedia.org/wiki/Year_2

    In schools in England Year 2 is the second year after Reception. It is the second full year of compulsory education, with children being admitted who are aged 6 before 1 September in any given academic year. The equivalent form in the US is 1st grade. [4] Year 2 is usually the third and final year in infant or the third year of primary school.

  8. Integer partition - Wikipedia

    en.wikipedia.org/wiki/Integer_partition

    2 + 2 2 + 1 + 1 1 + 1 + 1 + 1. The only partition of zero is the empty sum, having no parts. The order-dependent composition 1 + 3 is the same partition as 3 + 1, and the two distinct compositions 1 + 2 + 1 and 1 + 1 + 2 represent the same partition as 2 + 1 + 1. An individual summand in a partition is called a part.

  9. Space partitioning - Wikipedia

    en.wikipedia.org/wiki/Space_partitioning

    [1] [2] [3] Space partitioning is also often used in scanline algorithms to eliminate the polygons out of the camera's viewing frustum, limiting the number of polygons processed by the pipeline. There is also a usage in collision detection: determining whether two objects are close to each other can be much faster using space partitioning.

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