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- Pivot_element abstract "The pivot or pivot element is the element of a matrix, or an array, which is selected first by an algorithm (e.g. Gaussian elimination, simplex algorithm, etc.), to do certain calculations. In the case of matrix algorithms, a pivot entry is usually required to be at least distinct from zero, and often distant from it; in this case finding this element is called pivoting. Pivoting may be followed by an interchange of rows or columns to bring the pivot to a fixed position and allow the algorithm to proceed successfully, and possibly to reduce round-off error.Pivoting might be thought of as swapping or sorting rows or columns in a matrix, and thus it can be represented as multiplication by permutation matrices. However, algorithms rarely move the matrix elements because this would cost too much time; instead, they just keep track of the permutations.Overall, pivoting adds more operations to the computational cost of an algorithm. These additional operations are sometimes necessary for the algorithm to work at all. Other times these additional operations are worthwhile because they add numerical stability to the final result.".
- Pivot_element wikiPageExternalLink crisscross.ps.
- Pivot_element wikiPageID "9811503".
- Pivot_element wikiPageRevisionID "583061008".
- Pivot_element hasPhotoCollection Pivot_element.
- Pivot_element id "1243".
- Pivot_element title "Pivoting".
- Pivot_element subject Category:Exchange_algorithms.
- Pivot_element subject Category:Numerical_linear_algebra.
- Pivot_element type Abstraction100002137.
- Pivot_element type Act100030358.
- Pivot_element type Activity100407535.
- Pivot_element type Algorithm105847438.
- Pivot_element type Event100029378.
- Pivot_element type ExchangeAlgorithms.
- Pivot_element type Procedure101023820.
- Pivot_element type PsychologicalFeature100023100.
- Pivot_element type Rule105846932.
- Pivot_element type YagoPermanentlyLocatedEntity.
- Pivot_element comment "The pivot or pivot element is the element of a matrix, or an array, which is selected first by an algorithm (e.g. Gaussian elimination, simplex algorithm, etc.), to do certain calculations. In the case of matrix algorithms, a pivot entry is usually required to be at least distinct from zero, and often distant from it; in this case finding this element is called pivoting.".
- Pivot_element label "Pivot (matematica)".
- Pivot_element label "Pivot element".
- Pivot_element label "Pivotelement".
- Pivot_element label "主元".
- Pivot_element sameAs Pivotelement.
- Pivot_element sameAs Pivot_(matematica).
- Pivot_element sameAs m.02psz88.
- Pivot_element sameAs Q1425280.
- Pivot_element sameAs Q1425280.
- Pivot_element sameAs Pivot_element.
- Pivot_element wasDerivedFrom Pivot_element?oldid=583061008.
- Pivot_element isPrimaryTopicOf Pivot_element.