T
 the type of the field elementspublic interface FieldDecompositionSolver<T extends FieldElement<T>>
Decomposition algorithms decompose an A matrix has a product of several specific matrices from which they can solve A × X = B in least squares sense: they find X such that A × X  B is minimal.
Some solvers like FieldLUDecomposition
can only find the solution for
square matrices and when the solution is an exact linear solution, i.e. when
A × X  B is exactly 0. Other solvers can also find solutions
with nonsquare matrix A and with nonnull minimal norm. If an exact linear
solution exists it is also the minimal norm solution.
Modifier and Type  Method and Description 

FieldMatrix<T> 
getInverse()
Get the inverse (or pseudoinverse) of the decomposed matrix.

boolean 
isNonSingular()
Check if the decomposed matrix is nonsingular.

FieldMatrix<T> 
solve(FieldMatrix<T> b)
Solve the linear equation A × X = B for matrices A.

FieldVector<T> 
solve(FieldVector<T> b)
Solve the linear equation A × X = B for matrices A.

FieldVector<T> solve(FieldVector<T> b)
The A matrix is implicit, it is provided by the underlying decomposition algorithm.
b
 righthand side of the equation A × X = BDimensionMismatchException
 if the matrices dimensions do not match.SingularMatrixException
 if the decomposed matrix is singular.FieldMatrix<T> solve(FieldMatrix<T> b)
The A matrix is implicit, it is provided by the underlying decomposition algorithm.
b
 righthand side of the equation A × X = BDimensionMismatchException
 if the matrices dimensions do not match.SingularMatrixException
 if the decomposed matrix is singular.boolean isNonSingular()
FieldMatrix<T> getInverse()
SingularMatrixException
 if the decomposed matrix is singular.Copyright © 2003–2016 The Apache Software Foundation. All rights reserved.