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  • Row operations

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  • Row equivalence is an equivalence relation
  • Definition of row operations on a matrix
  • Definition of pivot
  • Definition of pivot column
  • Definition of pivot position
  • Definition of row equivalent matrices
  • Definition of leading entry in a row of a matrix
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  1. Definition of pivot column

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  • Definition of pivotClose match
  • Definition of pivot positionClose match
  • The pivot columns of a matrix are a basis for the column space.Close match
  • Example of putting a matrix in echelon form and identifying the pivot columnsClose match
  • Row operations do not necessarily preserve the column space.Close match
  • Example of (echelon matrix/matrix in (row) echelon form)Close match
  • The reduced row-echelon form of a matrix determines which subset of a spanning set is a basis.Close match
  • Definition of (row) echelon form of a matrixClose match
  • Definition of (echelon matrix/matrix in (row) echelon form)Close match
  • Echelon matricesClose match
  • The number of pivots in the reduced row echelon form of a consistent system determines the number of free variables in the solution set.Close match
  • The rank of a matrix equals number of pivots in a reduced row echelon form.Close match
  • Definition of basic/dependent/leading variable in a linear systemClose match
  • Definition of echelon form of a linear systemRelated
  • Definition of leading entry in a row of a matrixRelated
  • Algorithm for computing an LU decompositionRelated
  • Definition of column space of a matrixRelated
  • Definition of row operations on a matrixRelated
  • Row equivalence is an equivalence relationRelated
  • Row equivalent matrices have the same row space.Related

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