Uses of Class
org.flag4j.arrays.sparse.PermutationMatrix

Packages that use PermutationMatrix

Package	Description
org.flag4j.arrays.sparse	Contains implementations for sparse tensors, matrices, and vectors.
org.flag4j.linalg.decompositions.balance	Provides implementations of matrix balancing for real and complex matrices.
org.flag4j.linalg.decompositions.lu	Provides implementations of the LU decomposition for real, complex, and field matrices.
org.flag4j.linalg.solvers.exact	Contains solvers which solve well determined linear tensor and matrix equations in an exact sense.
org.flag4j.linalg.solvers.exact.triangular	Contains solvers which solve well determined triangular linear matrix equations in an exact sense.

Uses of PermutationMatrix in org.flag4j.arrays.sparse

Methods in org.flag4j.arrays.sparse that return PermutationMatrix

Modifier and Type	Method	Description
PermutationMatrix	PermutationMatrix.copy()	Creates a copy of this permutation matrix.
static PermutationMatrix	PermutationMatrix.fromColSwaps(int[] colPermutation)	Creates a permutation matrix with the specified column permutation.
PermutationMatrix	PermutationMatrix.inv()	Computes the inverse/transpose of this permutation matrix.
PermutationMatrix	PermutationMatrix.mult(PermutationMatrix b)	Computes the matrix-matrix multiplication between two permutation matrices.
PermutationMatrix	PermutationMatrix.T()	Computes the transpose/inverse of this permutation matrix.

Methods in org.flag4j.arrays.sparse with parameters of type PermutationMatrix

Modifier and Type	Method	Description
PermutationMatrix	PermutationMatrix.mult(PermutationMatrix b)	Computes the matrix-matrix multiplication between two permutation matrices.

Constructors in org.flag4j.arrays.sparse with parameters of type PermutationMatrix

Modifier	Constructor	Description
	PermutationMatrix(PermutationMatrix src)	Copy constructor which creates a deep copy of the src permutation matrix.

Uses of PermutationMatrix in org.flag4j.linalg.decompositions.balance

Methods in org.flag4j.linalg.decompositions.balance that return PermutationMatrix

Modifier and Type	Method	Description
PermutationMatrix	Balancer.getP()	Gets the permutation matrix for the last matrix balanced by this balancer.
PermutationMatrix	Balancer.getPInv()	Gets the inverse of the permutation matrix P-1 from the balancing problem.

Uses of PermutationMatrix in org.flag4j.linalg.decompositions.lu

Fields in org.flag4j.linalg.decompositions.lu declared as PermutationMatrix

Modifier and Type	Field	Description
protected PermutationMatrix	LU.P	Permutation matrix to store row swaps if partial pivoting is used.
protected PermutationMatrix	LU.Q	Permutation matrix to store column swaps if full pivoting is used.

Methods in org.flag4j.linalg.decompositions.lu that return PermutationMatrix

Modifier and Type	Method	Description
PermutationMatrix	LU.getP()	Gets the row permutation matrix of the decomposition.
PermutationMatrix	LU.getQ()	Gets the column permutation matrix of the decomposition.

Uses of PermutationMatrix in org.flag4j.linalg.solvers.exact

Fields in org.flag4j.linalg.solvers.exact declared as PermutationMatrix

Modifier and Type	Field	Description
protected PermutationMatrix	ExactSolver.rowPermute	Row permutation matrix for LU decomposition.

Uses of PermutationMatrix in org.flag4j.linalg.solvers.exact.triangular

Methods in org.flag4j.linalg.solvers.exact.triangular with parameters of type PermutationMatrix

Modifier and Type	Method	Description
CMatrix	ComplexForwardSolver.solve(CMatrix L, PermutationMatrix P)	Solves a linear system \( LX = P \) for \( X \) where \( L \) is a lower triangular matrix and \( P \) is a permutation matrix.
abstract T	ForwardSolver.solve(T L, PermutationMatrix P)	Solves a linear system \( LX = P \) for \( X \) where \( L \) is a lower triangular matrix and \( P \) is a permutation matrix.
Matrix	RealForwardSolver.solve(Matrix L, PermutationMatrix P)	Solves a linear system \( LX = P \) for \( X \) where \( L \) is a lower triangular matrix and \( P \) is a permutation matrix.