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% | Reference manual page: Taucs_solver_traits.tex
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% | 21.09.2005   Laurent Saboret, Pierre Alliez
% | Package: Parameterization
% |
\RCSdef{\RCSTaucssolvertraitsRev}{$Id$}
\RCSdefDate{\RCSTaucssolvertraitsDate}{$Date$}
% |
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\begin{ccRefClass}{Taucs_solver_traits}  %% add template arg's if necessary

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\ccDefinition

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The class Taucs\_solver\_traits is a traits class for solving GENERAL (aka unsymmetric) sparse linear systems using TAUCS out-of-core LU factorization.

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\ccInclude{CGAL/Taucs_solver_traits.h}


\ccIsModel

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Model of the SparseLinearAlgebraTraits\_d concept.

%END-AUTO(\ccIsModel)


\ccParameters

The full template declaration is:

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template$<$  \\
class T$>$   \\
class Taucs\_solver\_traits;

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\ccTypes

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\ccNestedType{Matrix}
{
}
\ccGlue
\ccNestedType{Vector}
{
}
\ccGlue
\ccNestedType{NT}
{
}
\ccGlue

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\ccCreation
\ccCreationVariable{solver}  %% choose variable name for \ccMethod

\ccConstructor{Taucs_solver_traits();}{default constructor.}

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\ccConstructor{Taucs_solver_traits ();}
{
Create a TAUCS sparse linear solver for GENERAL (aka unsymmetric) matrices.
}
\ccGlue

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\ccOperations

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\ccMethod{bool linear_solver (const Matrix & A, const Vector & B, Vector & X, NT & D);}
{
Solve the sparse linear system {\em A$\ast$X = B}. Return true on success. The solution is then (1/D) $\ast$ X.
Preconditions:\begin{itemize}
\item A.row\_dimension() == B.dimension().\item A.column\_dimension() == X.dimension(). \end{itemize}
}
\ccGlue
\ccMethod{bool is_solvable (const Matrix & A, const Vector & B);}
{
Indicate if the linear system can be solved and if the matrix conditioning is good.
Preconditions:\begin{itemize}
\item A.row\_dimension() == B.dimension().\end{itemize}
}
\ccGlue
\begin{description}
\item[Todo]Implement Taucs\_solver\_traits::is\_solvable() by solving the system, then checking that $|$ $|$$|$A$\ast$X$|$$|$/$|$$|$B$|$$|$ - 1 $|$ $<$ epsilon. \end{description}
\ccGlue

%END-AUTO(\ccOperations)


\ccSeeAlso

\ccRefIdfierPage{CGAL::Taucs_symmetric_solver_traits}  \\
\ccRefIdfierPage{CGAL::Taucs_matrix}  \\
\ccRefIdfierPage{CGAL::Taucs_symmetric_matrix}  \\
\ccRefIdfierPage{CGAL::Taucs_vector}  \\
\ccc{OpenNL::DefaultLinearSolverTraits}  \\
\ccc{OpenNL::SymmetricLinearSolverTraits}  \\


\ccExample

See \ccc{Taucs_parameterization.C} example.


\end{ccRefClass}

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