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<title>Singular Value Decomposition Solvers - SVD</title>
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<body class="manpageindex">
<h2>Singular Value Decomposition Solvers - SVD: <a href="../../../src/svd/examples/tutorials/index.html">Examples</a></h2>
<p>
The Singular Value Decomposition Solver (SVD) is very similar to the EPS object, but intended for the computation of the partial SVD of a rectangular matrix. With this type of object, the user can specify an SVD problem and solve it with any of the different solvers encapsulated by the package. Some of these solvers are actually implemented through calls to EPS eigensolvers.
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<p>
The user interface is very similar to that of EPS, both for the options database (e.g., <code>-svd_nsv 4 -svd_type lanczos</code>), and for the programmatic interface (e.g., <a href="SVDSetDimensions.html">SVDSetDimensions</a>() / <a href="SVDSetType.html">SVDSetType</a>()).
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<TABLE>
<TR><TD WIDTH=250 COLSPAN="3"><B>Beginner - Basic usage</B></TD></TR>
<TD WIDTH=250><A HREF="./SVD.html">SVD</A></TD>
<TD WIDTH=250><A HREF="./SVDDestroy.html">SVDDestroy</A></TD>
<TD WIDTH=250><A HREF="./SVDSolve.html">SVDSolve</A></TD>
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<TD WIDTH=250><A HREF="./SVDComputeRelativeError.html">SVDComputeRelativeError</A></TD>
<TD WIDTH=250><A HREF="./SVDGetConverged.html">SVDGetConverged</A></TD>
<TD WIDTH=250><A HREF="./SVDType.html">SVDType</A></TD>
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<TD WIDTH=250><A HREF="./SVDComputeResidualNorms.html">SVDComputeResidualNorms</A></TD>
<TD WIDTH=250><A HREF="./SVDGetSingularTriplet.html">SVDGetSingularTriplet</A></TD>
<TD WIDTH=250><A HREF="./SVDView.html">SVDView</A></TD>
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<TD WIDTH=250><A HREF="./SVDConvergedReason.html">SVDConvergedReason</A></TD>
<TD WIDTH=250><A HREF="./SVDSetFromOptions.html">SVDSetFromOptions</A></TD>
<TD WIDTH=250><A HREF="./"></A></TD>
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<TD WIDTH=250><A HREF="./SVDCreate.html">SVDCreate</A></TD>
<TD WIDTH=250><A HREF="./SVDSetOperator.html">SVDSetOperator</A></TD>
<TD WIDTH=250><A HREF="./"></A></TD>
<TR>
<TR><TD WIDTH=250 COLSPAN="3"><B>Intermediate - Setting options for algorithms and data structures</B></TD></TR>
<TD WIDTH=250><A HREF="./SVDGetConvergedReason.html">SVDGetConvergedReason</A></TD>
<TD WIDTH=250><A HREF="./SVDGetWhichSingularTriplets.html">SVDGetWhichSingularTriplets</A></TD>
<TD WIDTH=250><A HREF="./SVDSetInitialSpace.html">SVDSetInitialSpace</A></TD>
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<TD WIDTH=250><A HREF="./SVDGetDimensions.html">SVDGetDimensions</A></TD>
<TD WIDTH=250><A HREF="./SVDMonitorAll.html">SVDMonitorAll</A></TD>
<TD WIDTH=250><A HREF="./SVDSetInitialSpaceLeft.html">SVDSetInitialSpaceLeft</A></TD>
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<TD WIDTH=250><A HREF="./SVDGetIterationNumber.html">SVDGetIterationNumber</A></TD>
<TD WIDTH=250><A HREF="./SVDMonitorCancel.html">SVDMonitorCancel</A></TD>
<TD WIDTH=250><A HREF="./SVDSetTolerances.html">SVDSetTolerances</A></TD>
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<TD WIDTH=250><A HREF="./SVDGetMonitorContext.html">SVDGetMonitorContext</A></TD>
<TD WIDTH=250><A HREF="./SVDMonitorConverged.html">SVDMonitorConverged</A></TD>
<TD WIDTH=250><A HREF="./SVDSetTrackAll.html">SVDSetTrackAll</A></TD>
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<TD WIDTH=250><A HREF="./SVDGetOperationCounters.html">SVDGetOperationCounters</A></TD>
<TD WIDTH=250><A HREF="./SVDMonitorFirst.html">SVDMonitorFirst</A></TD>
<TD WIDTH=250><A HREF="./SVDSetType.html">SVDSetType</A></TD>
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<TD WIDTH=250><A HREF="./SVDGetTolerances.html">SVDGetTolerances</A></TD>
<TD WIDTH=250><A HREF="./SVDMonitorSet.html">SVDMonitorSet</A></TD>
<TD WIDTH=250><A HREF="./SVDSetWhichSingularTriplets.html">SVDSetWhichSingularTriplets</A></TD>
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<TD WIDTH=250><A HREF="./SVDGetTrackAll.html">SVDGetTrackAll</A></TD>
<TD WIDTH=250><A HREF="./SVDPrintSolution.html">SVDPrintSolution</A></TD>
<TD WIDTH=250><A HREF="./SVDWhich.html">SVDWhich</A></TD>
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<TD WIDTH=250><A HREF="./SVDGetType.html">SVDGetType</A></TD>
<TD WIDTH=250><A HREF="./SVDSetDimensions.html">SVDSetDimensions</A></TD>
<TD WIDTH=250><A HREF="./"></A></TD>
<TR>
<TR><TD WIDTH=250 COLSPAN="3"><B>Advanced - Setting more advanced options and customization</B></TD></TR>
<TD WIDTH=250><A HREF="./SVDAppendOptionsPrefix.html">SVDAppendOptionsPrefix</A></TD>
<TD WIDTH=250><A HREF="./SVDGetOperator.html">SVDGetOperator</A></TD>
<TD WIDTH=250><A HREF="./SVDSetIP.html">SVDSetIP</A></TD>
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<TD WIDTH=250><A HREF="./SVDCrossGetEPS.html">SVDCrossGetEPS</A></TD>
<TD WIDTH=250><A HREF="./SVDGetOptionsPrefix.html">SVDGetOptionsPrefix</A></TD>
<TD WIDTH=250><A HREF="./SVDSetOptionsPrefix.html">SVDSetOptionsPrefix</A></TD>
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<TD WIDTH=250><A HREF="./SVDCrossSetEPS.html">SVDCrossSetEPS</A></TD>
<TD WIDTH=250><A HREF="./SVDGetTransposeMode.html">SVDGetTransposeMode</A></TD>
<TD WIDTH=250><A HREF="./SVDSetTransposeMode.html">SVDSetTransposeMode</A></TD>
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<TD WIDTH=250><A HREF="./SVDCyclicGetEPS.html">SVDCyclicGetEPS</A></TD>
<TD WIDTH=250><A HREF="./SVDLanczosGetOneSide.html">SVDLanczosGetOneSide</A></TD>
<TD WIDTH=250><A HREF="./SVDSetUp.html">SVDSetUp</A></TD>
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<TD WIDTH=250><A HREF="./SVDCyclicGetExplicitMatrix.html">SVDCyclicGetExplicitMatrix</A></TD>
<TD WIDTH=250><A HREF="./SVDLanczosSetOneSide.html">SVDLanczosSetOneSide</A></TD>
<TD WIDTH=250><A HREF="./SVDTRLanczosGetOneSide.html">SVDTRLanczosGetOneSide</A></TD>
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<TD WIDTH=250><A HREF="./SVDCyclicSetEPS.html">SVDCyclicSetEPS</A></TD>
<TD WIDTH=250><A HREF="./SVDRegister.html">SVDRegister</A></TD>
<TD WIDTH=250><A HREF="./SVDTRLanczosSetOneSide.html">SVDTRLanczosSetOneSide</A></TD>
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<TD WIDTH=250><A HREF="./SVDCyclicSetExplicitMatrix.html">SVDCyclicSetExplicitMatrix</A></TD>
<TD WIDTH=250><A HREF="./SVDRegisterAll.html">SVDRegisterAll</A></TD>
<TD WIDTH=250><A HREF="./SVDTransposeMode.html">SVDTransposeMode</A></TD>
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<TD WIDTH=250><A HREF="./SVDGetDS.html">SVDGetDS</A></TD>
<TD WIDTH=250><A HREF="./SVDReset.html">SVDReset</A></TD>
<TD WIDTH=250><A HREF="./"></A></TD>
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<TD WIDTH=250><A HREF="./SVDGetIP.html">SVDGetIP</A></TD>
<TD WIDTH=250><A HREF="./SVDSetDS.html">SVDSetDS</A></TD>
<TD WIDTH=250><A HREF="./"></A></TD>
<TR>
<TR><TD WIDTH=250 COLSPAN="3"><B>Developer - Interfaces intended primarily for library developers, not for typical applications programmers</B></TD></TR>
<TD WIDTH=250><A HREF="./SVDFinalizePackage.html">SVDFinalizePackage</A></TD>
<TD WIDTH=250><A HREF="./SVDInitializePackage.html">SVDInitializePackage</A></TD>
<TD WIDTH=250><A HREF="./"></A></TD>
<TR>
<TR><TD WIDTH=250 COLSPAN="3"><B>No deprecated routines</B></TD></TR>
</TABLE>
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