com.interpss.core.sparse.solver

Interface ISparseEqnSolver

All Known Subinterfaces:

ICSJSparseEqnSolver

All Known Implementing Classes:

BaseCSJEqnComplexSolver, BaseCSJEqnDoubleSolver, BaseCSJSparseEqnSolver, BaseSparseEqnSolver, CSJLeastSquareDoubleSolver, CSJSqaureMatrixEqnDoubleSolver, CSJSquareMatrixEqnComplexSolver, CSJWeightedLeastSquareDoubleSolver, SparseEqnComplexSolver, SparseEqnDoubleSolver

public interface ISparseEqnSolver

Sparse Equation of data type double for solving the [A]X=B problem. [A] could be a non-square matrix. The solution process in general includes 1) factorization; 2) solving the equation. To outside, the index number is from 0 to n-1.

Method Summary

Modifier and Type	Method and Description
boolean	factorization() Matrix factorization, for example LU decomposition, of the matrix.
boolean	factorization(double tolerance) Matrix factorization, for example LU decomposition, of the matrix.
void	setMatrixDirty() set the A matrix dirty status to true, due to change of its element
void	solveEqn() Solve the [A]X = B problem
double[]	solveEqn(double[] b) Solve the [A]X = B problem, assume the [A] is LUed

Method Detail

setMatrixDirty

void setMatrixDirty()

set the A matrix dirty status to true, due to change of its element

solveEqn

void solveEqn()
       throws IpssNumericException

Solve the [A]X = B problem

Throws:

IpssNumericException

solveEqn

double[] solveEqn(double[] b)
           throws IpssNumericException

Solve the [A]X = B problem, assume the [A] is LUed

Parameters:

b - the B vector

Throws:

IpssNumericException

factorization

boolean factorization(double tolerance)
               throws IpssNumericException

Matrix factorization, for example LU decomposition, of the matrix.

Parameters:

tolerance - the tolerance for matrix singular detection

Returns:

if succeed return true.

Throws:

IpssNumericException

factorization

boolean factorization()
               throws IpssNumericException

Matrix factorization, for example LU decomposition, of the matrix.

Returns:

if succeed return true.

Throws:

IpssNumericException