| Package | Description | 
|---|---|
| org.apache.commons.math3.linear | Linear algebra support. | 
| Modifier and Type | Class and Description | 
|---|---|
| class  | AbstractRealMatrixBasic implementation of RealMatrix methods regardless of the underlying storage. | 
| class  | Array2DRowRealMatrixImplementation of  RealMatrixusing adouble[][]array to
 store entries. | 
| class  | BlockRealMatrixCache-friendly implementation of RealMatrix using a flat arrays to store
 square blocks of the matrix. | 
| class  | DiagonalMatrixImplementation of a diagonal matrix. | 
| class  | JacobiPreconditionerThis class implements the standard Jacobi (diagonal) preconditioner. | 
| class  | OpenMapRealMatrixSparse matrix implementation based on an open addressed map. | 
| Modifier and Type | Method and Description | 
|---|---|
| RealLinearOperator | JacobiPreconditioner. sqrt()Returns the square root of  thisdiagonal operator. | 
| Modifier and Type | Method and Description | 
|---|---|
| protected static void | PreconditionedIterativeLinearSolver. checkParameters(RealLinearOperator a,
               RealLinearOperator m,
               RealVector b,
               RealVector x0)Performs all dimension checks on the parameters of
  solveandsolveInPlace,
 and throws an exception if one of the checks fails. | 
| protected static void | IterativeLinearSolver. checkParameters(RealLinearOperator a,
               RealVector b,
               RealVector x0)Performs all dimension checks on the parameters of
  solveandsolveInPlace,
 and throws an exception if one of the checks fails. | 
| static JacobiPreconditioner | JacobiPreconditioner. create(RealLinearOperator a)Creates a new instance of this class. | 
| RealVector | SymmLQ. solve(RealLinearOperator a,
     RealLinearOperator m,
     RealVector b)Returns an estimate of the solution to the linear system A · x =
 b. | 
| RealVector | PreconditionedIterativeLinearSolver. solve(RealLinearOperator a,
     RealLinearOperator m,
     RealVector b)Returns an estimate of the solution to the linear system A · x =
 b. | 
| RealVector | SymmLQ. solve(RealLinearOperator a,
     RealLinearOperator m,
     RealVector b,
     boolean goodb,
     double shift)Returns an estimate of the solution to the linear system (A - shift
 · I) · x = b. | 
| RealVector | SymmLQ. solve(RealLinearOperator a,
     RealLinearOperator m,
     RealVector b,
     RealVector x)Returns an estimate of the solution to the linear system A · x =
 b. | 
| RealVector | PreconditionedIterativeLinearSolver. solve(RealLinearOperator a,
     RealLinearOperator m,
     RealVector b,
     RealVector x0)Returns an estimate of the solution to the linear system A · x =
 b. | 
| RealVector | SymmLQ. solve(RealLinearOperator a,
     RealVector b)Returns an estimate of the solution to the linear system A · x =
 b. | 
| RealVector | IterativeLinearSolver. solve(RealLinearOperator a,
     RealVector b)Returns an estimate of the solution to the linear system A · x =
 b. | 
| RealVector | PreconditionedIterativeLinearSolver. solve(RealLinearOperator a,
     RealVector b)Returns an estimate of the solution to the linear system A · x =
 b. | 
| RealVector | SymmLQ. solve(RealLinearOperator a,
     RealVector b,
     boolean goodb,
     double shift)Returns the solution to the system (A - shift · I) · x = b. | 
| RealVector | SymmLQ. solve(RealLinearOperator a,
     RealVector b,
     RealVector x)Returns an estimate of the solution to the linear system A · x =
 b. | 
| RealVector | IterativeLinearSolver. solve(RealLinearOperator a,
     RealVector b,
     RealVector x0)Returns an estimate of the solution to the linear system A · x =
 b. | 
| RealVector | PreconditionedIterativeLinearSolver. solve(RealLinearOperator a,
     RealVector b,
     RealVector x0)Returns an estimate of the solution to the linear system A · x =
 b. | 
| RealVector | SymmLQ. solveInPlace(RealLinearOperator a,
            RealLinearOperator m,
            RealVector b,
            RealVector x)Returns an estimate of the solution to the linear system A · x =
 b. | 
| RealVector | ConjugateGradient. solveInPlace(RealLinearOperator a,
            RealLinearOperator m,
            RealVector b,
            RealVector x0)Returns an estimate of the solution to the linear system A · x =
 b. | 
| abstract RealVector | PreconditionedIterativeLinearSolver. solveInPlace(RealLinearOperator a,
            RealLinearOperator m,
            RealVector b,
            RealVector x0)Returns an estimate of the solution to the linear system A · x =
 b. | 
| RealVector | SymmLQ. solveInPlace(RealLinearOperator a,
            RealLinearOperator m,
            RealVector b,
            RealVector x,
            boolean goodb,
            double shift)Returns an estimate of the solution to the linear system (A - shift
 · I) · x = b. | 
| RealVector | SymmLQ. solveInPlace(RealLinearOperator a,
            RealVector b,
            RealVector x)Returns an estimate of the solution to the linear system A · x =
 b. | 
| abstract RealVector | IterativeLinearSolver. solveInPlace(RealLinearOperator a,
            RealVector b,
            RealVector x0)Returns an estimate of the solution to the linear system A · x =
 b. | 
| RealVector | PreconditionedIterativeLinearSolver. solveInPlace(RealLinearOperator a,
            RealVector b,
            RealVector x0)Returns an estimate of the solution to the linear system A · x =
 b. | 
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