no.uib.cipr.matrix.sparse
Class CGS
java.lang.Object
no.uib.cipr.matrix.sparse.AbstractIterativeSolver
no.uib.cipr.matrix.sparse.CGS
- All Implemented Interfaces:
- IterativeSolver
public class CGS
- extends AbstractIterativeSolver
Conjugate Gradients squared solver. CGS solves the unsymmetric linear system
Ax = b
using the Conjugate Gradient Squared method
- Author:
- Templates
Constructor Summary |
CGS(Vector template)
Constructor for CGS. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
CGS
public CGS(Vector template)
- Constructor for CGS. Uses the given vector as template for creating
scratch vectors. Typically, the solution or the right hand side vector
can be passed, and the template is not modified
- Parameters:
template
- Vector to use as template for the work vectors needed in the
solution process
solve
public Vector solve(Matrix A,
Vector b,
Vector x)
throws IterativeSolverNotConvergedException
- Description copied from interface:
IterativeSolver
- Solves the given problem, writing result into the vector.
- Parameters:
A
- Matrix of the problemb
- Right hand sidex
- Solution is stored here. Also used as initial guess
- Returns:
- The solution vector x
- Throws:
IterativeSolverNotConvergedException
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