namespace mfem {

/*! \mainpage Code Documentation
 *
 * <H3>Main mesh classes</H3>
 *
 * - Mesh
 * - NCMesh
 * - Element
 * - ElementTransformation
 *
 * <H3>Main finite element classes</H3>
 *
 * - FiniteElement
 * - FiniteElementCollection
 * - FiniteElementSpace
 * - GridFunction
 * - BilinearFormIntegrator and LinearFormIntegrator
 * - LinearForm, BilinearForm and MixedBilinearForm
 *
 * <H3>Main linear algebra classes and sources</H3>
 *
 * - Operator and BilinearForm
 * - Vector and LinearForm
 * - DenseMatrix and SparseMatrix
 * - Sparse \link sparsesmoothers.hpp smoothers\endlink and linear
 *   \link solvers.hpp solvers\endlink
 *
 * <H3>Main parallel classes</H3>
 * - ParMesh
 * - ParNCMesh
 * - ParFiniteElementSpace
 * - ParGridFunction
 * - ParBilinearForm and ParLinearForm
 * - HypreParMatrix and HypreParVector
 * - HypreSolver and other \link hypre.hpp hypre classes\endlink
 *
 * <H3>Main GPU classes</H3>
 * - Device
 * - Memory
 * - MemoryManager
 * - mfem::forall functions in forall.hpp
 *
 * <H3>Example codes</H3>
 * - <a class="el" href="ex0_8cpp_source.html">Example 0</a>: simplest example, nodal H1 FEM for the Poisson problem
 * - <a class="el" href="ex0p_8cpp_source.html">Example 0p</a>: simplest parallel example, nodal H1 FEM for the Poisson problem
 * - <a class="el" href="examples_2ex1_8cpp_source.html">Example 1</a>: nodal H1 FEM for the Poisson problem (same discretization as ex0 but with more sophisticated options)
 * - <a class="el" href="examples_2ex1p_8cpp_source.html">Example 1p</a>: parallel nodal H1 FEM for the Poisson problem (same discretization as ex0p but with more sophisticated options)
 * - <a class="el" href="ex2_8cpp_source.html">Example 2</a>: vector FEM for linear elasticity
 * - <a class="el" href="ex2p_8cpp_source.html">Example 2p</a>: parallel vector FEM for linear elasticity
 * - <a class="el" href="ex3_8cpp_source.html">Example 3</a>: Nedelec H(curl) FEM for the definite Maxwell problem
 * - <a class="el" href="ex3p_8cpp_source.html">Example 3p</a>: parallel Nedelec H(curl) FEM for the definite Maxwell problem
 * - <a class="el" href="ex4_8cpp_source.html">Example 4</a>: Raviart-Thomas H(div) FEM for the grad-div problem
 * - <a class="el" href="ex4p_8cpp_source.html">Example 4p</a>: parallel Raviart-Thomas H(div) FEM for the grad-div problem
 * - <a class="el" href="ex5_8cpp_source.html">Example 5</a>: mixed pressure-velocity FEM for the Darcy problem
 * - <a class="el" href="ex5p_8cpp_source.html">Example 5p</a>: parallel mixed pressure-velocity FEM for the Darcy problem
 * - <a class="el" href="ex6_8cpp_source.html">Example 6</a>: non-conforming adaptive mesh refinement for the Poisson problem
 * - <a class="el" href="ex6p_8cpp_source.html">Example 6p</a>: parallel non-conforming adaptive mesh refinement for the Poisson problem
 * - <a class="el" href="ex7_8cpp_source.html">Example 7</a>: screened Poisson problem on a surface (the unit sphere)
 * - <a class="el" href="ex7p_8cpp_source.html">Example 7p</a>: parallel screened Poisson problem on a surface (the unit sphere)
 * - <a class="el" href="ex8_8cpp_source.html">Example 8</a>: Discontinuous Petrov-Galerkin (DPG) for the Poisson problem
 * - <a class="el" href="ex8p_8cpp_source.html">Example 8p</a>: parallel Discontinuous Petrov-Galerkin (DPG) for the Poisson problem
 * - <a class="el" href="ex9_8cpp_source.html">Example 9</a>: Discontinuous Galerkin (DG) time-dependent advection
 * - <a class="el" href="ex9p_8cpp_source.html">Example 9p</a>: parallel Discontinuous Galerkin (DG) time-dependent advection
 * - <a class="el" href="ex10_8cpp_source.html">Example 10</a>: time-dependent implicit nonlinear elasticity
 * - <a class="el" href="ex10p_8cpp_source.html">Example 10p</a>: parallel time-dependent implicit nonlinear elasticity
 * - <a class="el" href="ex11p_8cpp_source.html">Example 11p</a>: parallel Laplace eigensolver
 * - <a class="el" href="ex12p_8cpp_source.html">Example 12p</a>: parallel linear elasticity eigensolver
 * - <a class="el" href="ex13p_8cpp_source.html">Example 13p</a>: parallel Maxwell eigensolver
 * - <a class="el" href="ex14_8cpp_source.html">Example 14</a>: Discontinuous Galerkin (DG) for the Poisson problem
 * - <a class="el" href="ex14p_8cpp_source.html">Example 14p</a>: parallel Discontinuous Galerkin (DG) for the Poisson problem
 * - <a class="el" href="ex15_8cpp_source.html">Example 15</a>: dynamic AMR for Laplace with prescribed time-dependent source
 * - <a class="el" href="ex15p_8cpp_source.html">Example 15p</a>: parallel dynamic AMR for Laplace with prescribed time-dependent source
 * - <a class="el" href="ex16_8cpp_source.html">Example 16</a>: time-dependent nonlinear heat equation
 * - <a class="el" href="ex16p_8cpp_source.html">Example 16p</a>: parallel time-dependent nonlinear heat equation
 * - <a class="el" href="ex17_8cpp_source.html">Example 17</a>: Discontinuous Galerkin (DG) for linear elasticity
 * - <a class="el" href="ex17p_8cpp_source.html">Example 17p</a>: parallel Discontinuous Galerkin (DG) for linear elasticity
 * - <a class="el" href="ex18_8cpp_source.html">Example 18</a>: Discontinuous Galerkin (DG) for the Euler equations
 * - <a class="el" href="ex18p_8cpp_source.html">Example 18p</a>: parallel Discontinuous Galerkin (DG) for the Euler equations
 * - <a class="el" href="ex19_8cpp_source.html">Example 19</a>: incompressible nonlinear elasticity
 * - <a class="el" href="ex19p_8cpp_source.html">Example 19p</a>: parallel incompressible nonlinear elasticity
 * - <a class="el" href="ex20_8cpp_source.html">Example 20</a>: symplectic ODE integration
 * - <a class="el" href="ex20p_8cpp_source.html">Example 20p</a>: parallel symplectic ODE integration
 * - <a class="el" href="ex21_8cpp_source.html">Example 21</a>: adaptive mesh refinement for linear elasticity
 * - <a class="el" href="ex21p_8cpp_source.html">Example 21p</a>: parallel adaptive mesh refinement for linear elasticity
 * - <a class="el" href="ex22_8cpp_source.html">Example 22</a>: complex-valued linear systems for damped harmonic oscillators
 * - <a class="el" href="ex22p_8cpp_source.html">Example 22p</a>: parallel complex-valued linear systems for damped harmonic oscillators
 * - <a class="el" href="ex23_8cpp_source.html">Example 23</a>: second order in time wave equation
 * - <a class="el" href="ex24_8cpp_source.html">Example 24</a>: mixed finite element spaces and interpolators
 * - <a class="el" href="ex24p_8cpp_source.html">Example 24p</a>: parallel mixed finite element spaces and interpolators
 * - <a class="el" href="ex25_8cpp_source.html">Example 25</a>: simulation of electromagnetic wave propagation using a Perfectly Matched Layer (PML)
 * - <a class="el" href="ex25p_8cpp_source.html">Example 25p</a>: parallel simulation of electromagnetic wave propagation using a Perfectly Matched Layer (PML)
 * - <a class="el" href="ex26_8cpp_source.html">Example 26</a>: multigrid preconditioner for the Poisson problem using nodal H1 FEM
 * - <a class="el" href="ex26p_8cpp_source.html">Example 26p</a>: parallel multigrid preconditioner for the Poisson problem using nodal H1 FEM
 * - <a class="el" href="ex27_8cpp_source.html">Example 27</a>: boundary conditions for the Laplace problem
 * - <a class="el" href="ex27p_8cpp_source.html">Example 27p</a>: parallel boundary conditions for the Laplace problem
 * - <a class="el" href="ex28_8cpp_source.html">Example 28</a>: sliding contact in elasticity
 * - <a class="el" href="ex28p_8cpp_source.html">Example 28p</a>: parallel sliding contact in elasticity
 * - <a class="el" href="ex29_8cpp_source.html">Example 29</a>: Laplace solve on a 3D-embedded surface
 * - <a class="el" href="ex29p_8cpp_source.html">Example 29p</a>: parallel Laplace solve on a 3D-embedded surface
 * - <a class="el" href="ex30_8cpp_source.html">Example 30</a>: mesh preprocessing to resolve problem data
 * - <a class="el" href="ex30p_8cpp_source.html">Example 30p</a>: parallel mesh preprocessing to resolve problem data
 * - <a class="el" href="ex31_8cpp_source.html">Example 31</a>: Nedelec H(curl) FEM for the definite anisotropic Maxwell problem
 * - <a class="el" href="ex31p_8cpp_source.html">Example 31p</a>: parallel Nedelec H(curl) FEM for the definite anisotropic Maxwell problem
 * - <a class="el" href="ex32p_8cpp_source.html">Example 32p</a>: parallel anisotropic Maxwell eigensolver
 * - <a class="el" href="ex33_8cpp_source.html">Example 33</a>: nodal H1 FEM for the fractional Laplacian problem
 * - <a class="el" href="ex33p_8cpp_source.html">Example 33p</a>: parallel nodal H1 FEM for the fractional Laplacian problem
 * - <a class="el" href="ex34_8cpp_source.html">Example 34</a>: multi-domain magnetostatics
 * - <a class="el" href="ex34p_8cpp_source.html">Example 34p</a>: parallel multi-domain magnetostatics
 * - <a class="el" href="ex35p_8cpp_source.html">Example 35p</a>: parallel multi-domain damped harmonic oscillators
 * - <a class="el" href="ex36_8cpp_source.html">Example 36</a>: Proximal Galerkin FEM for the obstacle problem
 * - <a class="el" href="ex36p_8cpp_source.html">Example 36p</a>: parallel Proximal Galerkin FEM for the obstacle problem
 * - <a class="el" href="ex37_8cpp_source.html">Example 37</a>: topology optimization
 * - <a class="el" href="ex37p_8cpp_source.html">Example 37p</a>: parallel topology optimization
 * - <a class="el" href="ex38_8cpp_source.html">Example 38</a>: cut-surface and cut-volume integration
 * - <a class="el" href="ex39_8cpp_source.html">Example 39</a>: named mesh attributes
 * - <a class="el" href="ex39p_8cpp_source.html">Example 39p</a>: parallel named mesh attributes
 * - <a class="el" href="ex40_8cpp_source.html">Example 40</a>: eikonal equation
 * - <a class="el" href="ex40p_8cpp_source.html">Example 40p</a>: parallel eikonal equation
 *
 * <H4>AmgX Examples</H4>
 * - Variants of Examples
 *   <a class="el" href="examples_2amgx_2ex1_8cpp_source.html">1</a> and
 *   <a class="el" href="examples_2amgx_2ex1p_8cpp_source.html">1p</a>,
 *   demonstrating the use of MFEM's \link amgxsolver.hpp AmgX integration\endlink.
 *
 * <H4>Caliper Examples</H4>
 * - Variants of Example
 *   <a class="el" href="examples_2caliper_2ex1_8cpp_source.html">1</a> and
 *   <a class="el" href="examples_2caliper_2ex1p_8cpp_source.html">1p</a>,
 *   demonstrating the use of MFEM's \link annotation.hpp Ginkgo integration\endlink.
 *
 * <H4>Ginkgo Examples</H4>
 * - Variants of Example
 *   <a class="el" href="examples_2ginkgo_2ex1_8cpp_source.html">1</a>,
 *   demonstrating the use of MFEM's \link ginkgo.hpp Ginkgo integration\endlink.
 *
 * <H4>HiOp Examples</H4>
 * - Variants of Examples
 *   <a class="el" href="hiop_2ex9_8cpp_source.html">9</a> and
 *   <a class="el" href="hiop_2ex9p_8cpp_source.html">9p</a>,
 *   demonstrating the use of MFEM's \link hiop.hpp HiOp integration\endlink.
 *
 * <H4>PETSc Examples</H4>
 * - Variants of Examples
 *   <a class="el" href="examples_2petsc_2ex1p_8cpp_source.html">1p</a>,
 *   <a class="el" href="petsc_2ex2p_8cpp_source.html">2p</a>,
 *   <a class="el" href="petsc_2ex3p_8cpp_source.html">3p</a>,
 *   <a class="el" href="petsc_2ex4p_8cpp_source.html">4p</a>,
 *   <a class="el" href="petsc_2ex5p_8cpp_source.html">5p</a>,
 *   <a class="el" href="petsc_2ex6p_8cpp_source.html">6p</a>,
 *   <a class="el" href="petsc_2ex9p_8cpp_source.html">9p</a>,
 *   and
 *   <a class="el" href="petsc_2ex10p_8cpp_source.html">10p</a>,
 *   demonstrating the use of MFEM's \link petsc.hpp PETSc integration\endlink.
 *
 * <H4>PUMI Examples</H4>
 * - Variants of Examples
 *   <a class="el" href="examples_2pumi_2ex1_8cpp_source.html">1</a>,
 *   <a class="el" href="examples_2pumi_2ex1p_8cpp_source.html">1p</a>,
 *   <a class="el" href="pumi_2ex2_8cpp_source.html">2</a>,
 *   and
 *   <a class="el" href="pumi_2ex6p_8cpp_source.html">6p</a>,
 *   demonstrating the use of MFEM's \link pumi.hpp PUMI integration\endlink.
 *
 * <H4>SUNDIALS Examples</H4>
 * - Variants of Examples
 *   <a class="el" href="sundials_2ex9_8cpp_source.html">9</a>,
 *   <a class="el" href="sundials_2ex9p_8cpp_source.html">9p</a>,
 *   <a class="el" href="sundials_2ex10_8cpp_source.html">10</a>,
 *   <a class="el" href="sundials_2ex10p_8cpp_source.html">10p</a>,
 *   <a class="el" href="sundials_2ex16_8cpp_source.html">16</a>,
 *   and
 *   <a class="el" href="sundials_2ex16p_8cpp_source.html">16p</a>,
 *   demonstrating the use of MFEM's \link sundials.hpp SUNDIALS integration\endlink.
 * - CVODES adjoint miniapps:
 *   <a class="el" href="cvsRoberts__ASAi__dns_8cpp_source.html">serial ODE system</a>,
 *   <a class="el" href="adjoint__advection__diffusion_8cpp_source.html">parallel advection-diffusion</a>.
 *
 * <H4>SuperLU Examples</H4>
 * - Variants of Example
 *   <a class="el" href="examples_2superlu_2ex1p_8cpp_source.html">1p</a>,
 *   demonstrating the use of MFEM's \link superlu.hpp SuperLU integration\endlink.
 *
 * <H4>NURBS Examples</H4>
 * - Variants of Examples
 *  <a class="el" href="nurbs__ex1_8cpp_source.html">1</a>,
 *  <a class="el" href="nurbs__ex1p_8cpp_source.html">1p</a>,
 *  <a class="el" href="nurbs__ex3_8cpp_source.html">3</a>,
 *  <a class="el" href="nurbs__ex5_8cpp_source.html">5</a>,
 *  <a class="el" href="nurbs__ex11p_8cpp_source.html">11p</a>, and
 *  <a class="el" href="nurbs__ex24_8cpp_source.html">24</a>,
 *   demonstrating howto perform NURBS-based Isogeometric Analysis.
 * - Variant of Example <a class="el" href="nurbs__patch__ex1_8cpp_source.html">1</a>: demonstrates the use of patch integration
 * - <a class="el" href="nurbs__solenoidal_8cpp_source.html">NURBS Divergence-free</a>: solve a solenoidal vector projection with NURBS-based H(div) elements
 * - <a class="el" href="nurbs__curveint_8cpp_source.html">NURBS Interpolation</a>: NURBS interpolation of given geometry
 * - <a class="el" href="nurbs__naca__cmesh_8cpp_source.html">NURBS NACA Mesher</a>: generate NURBS based mesh around a NACA foil
 * - <a class="el" href="nurbs__printfunc_8cpp_source.html">NURBS Printer</a>: print the NURBS-basis
 *
 * <H3>Miniapps</H3>
 * - <a class="el" href="volta_8cpp_source.html">Volta</a>: simple electrostatics simulation code
 * - <a class="el" href="tesla_8cpp_source.html">Tesla</a>: simple magnetostatics simulation code
 * - <a class="el" href="maxwell_8cpp_source.html">Maxwell</a>: simple transient full-wave electromagnetics simulation code
 * - <a class="el" href="joule_8cpp_source.html">Joule</a>: transient magnetics and Joule heating miniapp
 * - <a class="el" href="lorentz_8cpp_source.html">Lorentz</a>: simple particle tracking code based on the Lorentz force
 * - <a class="el" href="classmfem_1_1navier_1_1NavierSolver.html">Navier</a>: solve the transient incompressible Navier-Stokes equations
 * - <a class="el" href="mobius-strip_8cpp_source.html">Mobius Strip</a>: generate various Mobius strip-like meshes
 * - <a class="el" href="klein-bottle_8cpp_source.html">Klein Bottle</a>: generate three types of Klein bottle surfaces
 * - <a class="el" href="toroid_8cpp_source.html">Toroid</a>: generate simple toroidal meshes
 * - <a class="el" href="twist_8cpp_source.html">Twist</a>: generate simple periodic meshes
 * - <a class="el" href="minimal-surface_8cpp_source.html">Minimal Surface</a>: compute minimal surfaces, <a class="el" href="minimal-surface_8cpp_source.html">serial</a> and <a class="el" href="pminimal-surface_8cpp_source.html">parallel</a> versions
 * - <a class="el" href="polar-nc_8cpp_source.html">Polar NC</a>: generate polar non-conforming meshes
 * - <a class="el" href="shaper_8cpp_source.html">Shaper</a>: resolve material interfaces by mesh refinement
 * - <a class="el" href="extruder_8cpp_source.html">Extruder</a>: extrude a low-dimensional mesh into a higher dimension
 * - <a class="el" href="mesh-explorer_8cpp_source.html">Mesh Explorer</a>: visualize and manipulate meshes
 * - <a class="el" href="mesh-optimizer_8cpp_source.html">Mesh Optimizer</a>: optimize high-order meshes, <a class="el" href="mesh-optimizer_8cpp_source.html">serial</a> and <a class="el" href="pmesh-optimizer_8cpp_source.html">parallel</a> versions
 * - <a class="el" href="mesh-quality_8cpp_source.html">Mesh Quality</a>: visualize and check mesh quality
 * - <a class="el" href="trimmer_8cpp_source.html">Trimmer</a>: trim elements from existing meshes
 * - <a class="el" href="display-basis_8cpp_source.html">Display Basis</a>: visualize finite element basis functions
 * - <a class="el" href="get-values_8cpp_source.html">Get Values</a>: extract field values via DataCollection classes
 * - <a class="el" href="load-dc_8cpp_source.html">Load DC</a>: visualize fields saved via DataCollection classes
 * - <a class="el" href="convert-dc_8cpp_source.html">Convert DC</a>: convert between different DataCollection formats
 * - <a class="el" href="lor-transfer_8cpp_source.html">LOR Transfer</a>: map functions between high-order and low-order refined spaces
 * - <a class="el" href="findpts_8cpp_source.html">Find Points</a>: evaluate grid function in physical space, <a class="el" href="findpts_8cpp_source.html">serial</a> and <a class="el" href="pfindpts_8cpp_source.html">parallel</a> versions
 * - <a class="el" href="field-diff_8cpp_source.html">Field Diff</a>: compare grid functions on different meshes
 * - <a class="el" href="field-interp_8cpp_source.html">Field Interp</a>: transfer a grid functions between meshes
 * - <a class="el" href="distance_8cpp_source.html">Distance</a>: finite element distance function solver
 * - <a class="el" href="diffusion_8cpp_source.html">Shifted Diffusion</a>: shifted boundary diffusion solver
 * - <a class="el" href="extrapolate_8cpp_source.html">Extrapolation</a>: PDE-based extrapolation of finite element functions
 * - <a class="el" href="block-solvers_8cpp_source.html">Block Solvers</a>: comparison of saddle point system solvers
 * - <a class="el" href="parheat_8cpp_source.html">Optimization gradients</a>: Gradients of PDE-constrained function
 * - <a class="el" href="par__example_8cpp_source.html">Parallel AD</a>: Parallel p-Laplacian example
 * - <a class="el" href="seq__example_8cpp_source.html">Serial AD</a>: Serial p-Laplacian example
 * - <a class="el" href="miniapps_2performance_2ex1_8cpp_source.html">HPC Example 1</a>: high-performance nodal H1 FEM for the Poisson problem
 * - <a class="el" href="miniapps_2performance_2ex1p_8cpp_source.html">HPC Example 1p</a>: high-performance parallel nodal H1 FEM for the Poisson problem
 * - <a class="el" href="generate__random__field_8cpp_source.html">SPDE Solvers</a>: SPDE solver random field generation
 * - <a class="el" href="contact-patch-test_8cpp_source.html">Contact</a>: mortar contact patch test for elasticity
 * - <a class="el" href="multidomain_8cpp_source.html">Multidomain miniapp</a>: Multidomain and Submesh demonstration miniapp
 * - <a class="el" href="pdiffusion_8cpp_source.html">DPG Diffusion example</a>: DPG formulation for the diffusion problem
 * - <a class="el" href="pmaxwell_8cpp_source.html">DPG Maxwell example</a>: DPG formulation for the indefinite Maxwell problem
 * - <a class="el" href="lor__elast_8cpp_source.html">LOR Elasticity</a>: solve linear elasticity with LOR preconditioning on GPUs
 *
 * See also the <a class="el" href="https://mfem.org/examples/">examples documentation</a> online.
 */

}
