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<center><a href="https://gitlab.com/petsc/petsc/-/blob/966382dc56242773704ef5f5cee7aa2db3ebc577/include/petsctaolinesearch.h">Actual source code: petsctaolinesearch.h</a></center><br>
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<pre width=80>
<a name="line1"> 1: </a><font color="#A020F0">#pragma once</font>
<a name="line3"> 3: </a><font color="#B22222">/* SUBMANSEC = <a href="../manualpages/Tao/Tao.html">Tao</a> */</font>
<a name="line5"> 5: </a><font color="#B22222">/*S</font>
<a name="line6"> 6: </a><font color="#B22222"> <a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a> - PETSc object that manages line searches for the `<a href="../manualpages/Tao/Tao.html">Tao</a>` optimization solves</font>
<a name="line8"> 8: </a><font color="#B22222"> Level: intermediate</font>
<a name="line10"> 10: </a><font color="#B22222">.seealso: [](ch_tao), `<a href="../manualpages/Tao/TaoLineSearchType.html">TaoLineSearchType</a>`, `<a href="../manualpages/Tao/Tao.html">Tao</a>`, `<a href="../manualpages/Tao/TaoCreate.html">TaoCreate</a>()`, `<a href="../manualpages/Tao/TaoDestroy.html">TaoDestroy</a>()`, `<a href="../manualpages/Tao/TaoSetType.html">TaoSetType</a>()`, `<a href="../manualpages/Tao/TaoType.html">TaoType</a>`</font>
<a name="line11"> 11: </a><font color="#B22222">S*/</font>
<a name="line12"> 12: </a><font color="#4169E1">typedef struct _p_TaoLineSearch *<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>;</font>
<a name="line14"> 14: </a>#include <A href="../include/petsctao.h.html"><petsctao.h></A>
<a name="line16"> 16: </a><font color="#B22222">/*E</font>
<a name="line17"> 17: </a><font color="#B22222"> <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TaoLineSearchConvergedReason</a> - reason a `<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>` completed</font>
<a name="line19"> 19: </a><font color="#B22222"> Values:</font>
<a name="line20"> 20: </a><font color="#B22222">+ `<a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_FAILED_ASCENT</a>` - initial line search step * g is not descent direction</font>
<a name="line21"> 21: </a><font color="#B22222">. `<a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_FAILED_INFORNAN</a>` - function evaluation gives `Inf` or `Nan` value</font>
<a name="line22"> 22: </a><font color="#B22222">. `<a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_FAILED_BADPARAMETER</a>` - negative value set as parameter</font>
<a name="line23"> 23: </a><font color="#B22222">. `<a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_HALTED_MAXFCN</a>` - maximum number of function evaluation reached</font>
<a name="line24"> 24: </a><font color="#B22222">. `<a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_HALTED_UPPERBOUND</a>` - step is at upper bound</font>
<a name="line25"> 25: </a><font color="#B22222">. `<a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_HALTED_LOWERBOUND</a>` - step is at lower bound</font>
<a name="line26"> 26: </a><font color="#B22222">. `<a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_HALTED_RTOL</a>` - range of uncertainty is smaller than given tolerance</font>
<a name="line27"> 27: </a><font color="#B22222">. `<a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_HALTED_USER</a>` - user can set this reason to stop line search</font>
<a name="line28"> 28: </a><font color="#B22222">. `<a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_HALTED_OTHER</a>` - any other reason</font>
<a name="line29"> 29: </a><font color="#B22222">- `<a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_SUCCESS</a>` - successful line search</font>
<a name="line31"> 31: </a><font color="#B22222"> Level: beginner</font>
<a name="line33"> 33: </a><font color="#B22222">.seealso: [](ch_tao), `<a href="../manualpages/Tao/Tao.html">Tao</a>`, `<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>`, `<a href="../manualpages/Tao/TaoSolve.html">TaoSolve</a>()`, `<a href="../manualpages/Tao/TaoGetConvergedReason.html">TaoGetConvergedReason</a>()`, `<a href="../manualpages/KSP/KSPConvergedReason.html">KSPConvergedReason</a>`, `<a href="../manualpages/SNES/SNESConvergedReason.html">SNESConvergedReason</a>`</font>
<a name="line34"> 34: </a><font color="#B22222">E*/</font>
<a name="line35"> 35: </a><font color="#4169E1">typedef</font> <font color="#4169E1">enum</font> {
<a name="line36"> 36: </a> <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_FAILED_INFORNAN</a> = -1,
<a name="line37"> 37: </a> <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_FAILED_BADPARAMETER</a> = -2,
<a name="line38"> 38: </a> <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_FAILED_ASCENT</a> = -3,
<a name="line39"> 39: </a> <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_CONTINUE_ITERATING</a> = 0,
<a name="line40"> 40: </a> <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_SUCCESS</a> = 1,
<a name="line41"> 41: </a> <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_SUCCESS_USER</a> = 2,
<a name="line42"> 42: </a> <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_HALTED_OTHER</a> = 3,
<a name="line43"> 43: </a> <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_HALTED_MAXFCN</a> = 4,
<a name="line44"> 44: </a> <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_HALTED_UPPERBOUND</a> = 5,
<a name="line45"> 45: </a> <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_HALTED_LOWERBOUND</a> = 6,
<a name="line46"> 46: </a> <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_HALTED_RTOL</a> = 7,
<a name="line47"> 47: </a> <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TAOLINESEARCH_HALTED_USER</a> = 8
<a name="line48"> 48: </a>} <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TaoLineSearchConvergedReason</a>;
<a name="line50"> 50: </a><font color="#B22222">/*J</font>
<a name="line51"> 51: </a><font color="#B22222"> <a href="../manualpages/Tao/TaoLineSearchType.html">TaoLineSearchType</a> - String with the name of a `<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>` method</font>
<a name="line53"> 53: </a><font color="#B22222"> Values:</font>
<a name="line54"> 54: </a><font color="#B22222">+ `<a href="../manualpages/TaoLineSearch/TAOLINESEARCHUNIT.html">TAOLINESEARCHUNIT</a>` - "unit" do not perform a line search and always accept unit step length</font>
<a name="line55"> 55: </a><font color="#B22222">. `<a href="../manualpages/TaoLineSearch/TAOLINESEARCHMT.html">TAOLINESEARCHMT</a>` - "more-thuente" line search with a cubic model enforcing the strong Wolfe/curvature condition</font>
<a name="line56"> 56: </a><font color="#B22222">. `<a href="../manualpages/TaoLineSearch/TAOLINESEARCHGPCG.html">TAOLINESEARCHGPCG</a>` - "gpcg"</font>
<a name="line57"> 57: </a><font color="#B22222">. `<a href="../manualpages/TaoLineSearch/TAOLINESEARCHARMIJO.html">TAOLINESEARCHARMIJO</a>` - "armijo" simple backtracking line search enforcing only the sufficient decrease condition</font>
<a name="line58"> 58: </a><font color="#B22222">. `<a href="../manualpages/TaoLineSearch/TAOLINESEARCHOWARMIJO.html">TAOLINESEARCHOWARMIJO</a>` - "owarmijo"</font>
<a name="line59"> 59: </a><font color="#B22222">- `TAOLINESEARCHIPM` - "ipm"</font>
<a name="line61"> 61: </a><font color="#B22222"> Options Database Key:</font>
<a name="line62"> 62: </a><font color="#B22222">. -tao_ls_type <type> - select which method <a href="../manualpages/Tao/Tao.html">Tao</a> should use at runtime</font>
<a name="line64"> 64: </a><font color="#B22222"> Level: beginner</font>
<a name="line66"> 66: </a><font color="#B22222">.seealso: [](ch_tao), `<a href="../manualpages/Tao/Tao.html">Tao</a>`, `<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>`, `<a href="../manualpages/TaoLineSearch/TaoLineSearchSetType.html">TaoLineSearchSetType</a>()`, `<a href="../manualpages/Tao/TaoCreate.html">TaoCreate</a>()`, `<a href="../manualpages/Tao/TaoSetType.html">TaoSetType</a>()`</font>
<a name="line67"> 67: </a><font color="#B22222">J*/</font>
<a name="line68"> 68: </a><font color="#4169E1">typedef const char *<a href="../manualpages/Tao/TaoLineSearchType.html">TaoLineSearchType</a>;</font>
<a name="line69"> 69: </a><strong><font color="#228B22">#define <a href="../manualpages/TaoLineSearch/TAOLINESEARCHUNIT.html">TAOLINESEARCHUNIT</a> </font><font color="#666666">"unit"</font><font color="#228B22"></font></strong>
<a name="line70"> 70: </a><strong><font color="#228B22">#define <a href="../manualpages/TaoLineSearch/TAOLINESEARCHMT.html">TAOLINESEARCHMT</a> </font><font color="#666666">"more-thuente"</font><font color="#228B22"></font></strong>
<a name="line71"> 71: </a><strong><font color="#228B22">#define <a href="../manualpages/TaoLineSearch/TAOLINESEARCHGPCG.html">TAOLINESEARCHGPCG</a> </font><font color="#666666">"gpcg"</font><font color="#228B22"></font></strong>
<a name="line72"> 72: </a><strong><font color="#228B22">#define <a href="../manualpages/TaoLineSearch/TAOLINESEARCHARMIJO.html">TAOLINESEARCHARMIJO</a> </font><font color="#666666">"armijo"</font><font color="#228B22"></font></strong>
<a name="line73"> 73: </a><strong><font color="#228B22">#define <a href="../manualpages/TaoLineSearch/TAOLINESEARCHOWARMIJO.html">TAOLINESEARCHOWARMIJO</a> </font><font color="#666666">"owarmijo"</font><font color="#228B22"></font></strong>
<a name="line74"> 74: </a><strong><font color="#228B22">#define TAOLINESEARCHIPM </font><font color="#666666">"ipm"</font><font color="#228B22"></font></strong>
<a name="line76"> 76: </a>PETSC_EXTERN <a href="../manualpages/Sys/PetscClassId.html">PetscClassId</a> TAOLINESEARCH_CLASSID;
<a name="line77"> 77: </a>PETSC_EXTERN <a href="../manualpages/Sys/PetscFunctionList.html">PetscFunctionList</a> TaoLineSearchList;
<a name="line79"> 79: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchCreate.html">TaoLineSearchCreate</a>(<a href="../manualpages/Sys/MPI_Comm.html">MPI_Comm</a>, <a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a> *)</font></strong>;
<a name="line80"> 80: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchSetFromOptions.html">TaoLineSearchSetFromOptions</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>)</font></strong>;
<a name="line81"> 81: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchSetUp.html">TaoLineSearchSetUp</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>)</font></strong>;
<a name="line82"> 82: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchDestroy.html">TaoLineSearchDestroy</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a> *)</font></strong>;
<a name="line83"> 83: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchMonitor.html">TaoLineSearchMonitor</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Sys/PetscInt.html">PetscInt</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a>)</font></strong>;
<a name="line84"> 84: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchView.html">TaoLineSearchView</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Viewer/PetscViewer.html">PetscViewer</a>)</font></strong>;
<a name="line85"> 85: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchViewFromOptions.html">TaoLineSearchViewFromOptions</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Sys/PetscObject.html">PetscObject</a>, const char[])</font></strong>;
<a name="line87"> 87: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchSetOptionsPrefix.html">TaoLineSearchSetOptionsPrefix</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, const char[])</font></strong>;
<a name="line88"> 88: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchReset.html">TaoLineSearchReset</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>)</font></strong>;
<a name="line89"> 89: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchAppendOptionsPrefix.html">TaoLineSearchAppendOptionsPrefix</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, const char[])</font></strong>;
<a name="line90"> 90: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchGetOptionsPrefix.html">TaoLineSearchGetOptionsPrefix</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, const char *[])</font></strong>;
<a name="line91"> 91: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchApply.html">TaoLineSearchApply</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a> *, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a> *, <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TaoLineSearchConvergedReason</a> *)</font></strong>;
<a name="line92"> 92: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchGetStepLength.html">TaoLineSearchGetStepLength</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a> *)</font></strong>;
<a name="line93"> 93: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchGetStartingVector.html">TaoLineSearchGetStartingVector</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Vec/Vec.html">Vec</a> *)</font></strong>;
<a name="line94"> 94: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchGetStepDirection.html">TaoLineSearchGetStepDirection</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Vec/Vec.html">Vec</a> *)</font></strong>;
<a name="line95"> 95: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchSetInitialStepLength.html">TaoLineSearchSetInitialStepLength</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a>)</font></strong>;
<a name="line96"> 96: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchGetSolution.html">TaoLineSearchGetSolution</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a> *, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a> *, <a href="../manualpages/Tao/TaoLineSearchConvergedReason.html">TaoLineSearchConvergedReason</a> *)</font></strong>;
<a name="line97"> 97: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchGetFullStepObjective.html">TaoLineSearchGetFullStepObjective</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a> *)</font></strong>;
<a name="line98"> 98: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchGetNumberFunctionEvaluations.html">TaoLineSearchGetNumberFunctionEvaluations</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Sys/PetscInt.html">PetscInt</a> *, <a href="../manualpages/Sys/PetscInt.html">PetscInt</a> *, <a href="../manualpages/Sys/PetscInt.html">PetscInt</a> *)</font></strong>;
<a name="line100">100: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchGetType.html">TaoLineSearchGetType</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Tao/TaoLineSearchType.html">TaoLineSearchType</a> *)</font></strong>;
<a name="line101">101: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchSetType.html">TaoLineSearchSetType</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Tao/TaoLineSearchType.html">TaoLineSearchType</a>)</font></strong>;
<a name="line103">103: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchIsUsingTaoRoutines.html">TaoLineSearchIsUsingTaoRoutines</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Sys/PetscBool.html">PetscBool</a> *)</font></strong>;
<a name="line104">104: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchSetObjectiveAndGTSRoutine.html">TaoLineSearchSetObjectiveAndGTSRoutine</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> (*)(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a> *, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a> *, void *), void *)</font></strong>;
<a name="line105">105: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchSetObjectiveRoutine.html">TaoLineSearchSetObjectiveRoutine</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> (*)(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a> *, void *), void *)</font></strong>;
<a name="line106">106: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchSetGradientRoutine.html">TaoLineSearchSetGradientRoutine</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> (*)(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>, void *), void *)</font></strong>;
<a name="line107">107: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchSetObjectiveAndGradientRoutine.html">TaoLineSearchSetObjectiveAndGradientRoutine</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> (*)(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a> *, <a href="../manualpages/Vec/Vec.html">Vec</a>, void *), void *)</font></strong>;
<a name="line109">109: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchComputeObjective.html">TaoLineSearchComputeObjective</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a> *)</font></strong>;
<a name="line110">110: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchComputeGradient.html">TaoLineSearchComputeGradient</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>)</font></strong>;
<a name="line111">111: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchComputeObjectiveAndGradient.html">TaoLineSearchComputeObjectiveAndGradient</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a> *, <a href="../manualpages/Vec/Vec.html">Vec</a>)</font></strong>;
<a name="line112">112: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchComputeObjectiveAndGTS.html">TaoLineSearchComputeObjectiveAndGTS</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a> *, <a href="../manualpages/Sys/PetscReal.html">PetscReal</a> *)</font></strong>;
<a name="line113">113: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchSetVariableBounds.html">TaoLineSearchSetVariableBounds</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>, <a href="../manualpages/Vec/Vec.html">Vec</a>)</font></strong>;
<a name="line115">115: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchInitializePackage.html">TaoLineSearchInitializePackage</a>(void)</font></strong>;
<a name="line116">116: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchFinalizePackage.html">TaoLineSearchFinalizePackage</a>(void)</font></strong>;
<a name="line118">118: </a><strong><font color="#4169E1"><a name="TaoLineSearchRegister"></a>PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchRegister.html">TaoLineSearchRegister</a>(const char[], <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> (*)(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>)</font></strong>);
<a name="line119">119: </a><strong><font color="#4169E1">PETSC_EXTERN <a href="../manualpages/Sys/PetscErrorCode.html">PetscErrorCode</a> <a href="../manualpages/TaoLineSearch/TaoLineSearchUseTaoRoutines.html">TaoLineSearchUseTaoRoutines</a>(<a href="../manualpages/Tao/TaoLineSearch.html">TaoLineSearch</a>, <a href="../manualpages/Tao/Tao.html">Tao</a>)</font></strong>;
</pre>
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