% TOOL
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% Files
%   findedge         - highlights edges in certain range
%   findedge3        - highlights edges in certain range in 3-D
%   findedgedof      - highlights some dofs associated to edges
%   findedgedof3     - highlights some dofs associated to edges
%   findelem         - highlights some elements
%   findelem3        - highlights the elements in the range
%   findnode         - highlights nodes in certain range.
%   findnode3        - highlights some nodes for 3-D meshes.
%   findnodedof      - highlights dof associated to nodes.
%   findquadelem     - highlights some elements
%   hg               - the interface of command hg in matlab
%   includepath      - inlcudes pathes
%   latexmatrix      - output the matrix in latex formate.
%   latexmesh        - draw a mesh using pstrick
%   latextable       - output the matrix in table formate in latex.
%   showboundary     - boundary mesh plot
%   showboundary3    - boundary surface mesh plot
%   showcoloring     - plot coloring vertices set
%   showgraph        - displays a planar graph
%   showgraphmatrix  - displays a planar graph
%   showmatrix       - displays a matrix.
%   showmesh         - displays a triangular mesh in 2-D.
%   showmesh3        - displays a tetrahedron mesh in 3-D.
%   showmeshdensity  - show the density of the mesh
%   showmeshquality  - show the qualify of the mesh
%   showquadmesh     - displays a QUAD mesh in 2-D
%   showquadsolution - plots the solution u on a quad mesh in 2-D.
%   showrate         - rate of an err sequence
%   showrate2        - rate of two error sequences
%   showrate3        - rate of two error sequences
%   showresult       - display the mesh and the solution 
%   showresult3      - display the mesh and the solution in 3-D
%   showsolution     - plots the solution u on a triangular mesh in 2-D.
%   showsolution3    - plots the solution u on a tetrahedron mesh in 3-D.
%   spsub2ind        - SPARSESUB2IND find values of a sparse matrix 
