* MatrixTools::apply_boundary_values() function. The projection of
* the trace of the function to the boundary is done with the
* VectorTools::project_boundary_values() (see below) function,
- * which is called with a map of boundary functions FunctioMap in
+ * which is called with a map of boundary functions FunctionMap in
* which all boundary indicators from zero to numbers::internal_face_boundary_id-1
* (numbers::internal_face_boundary_id is used for other purposes,
* see the Triangulation class documentation) point
* To use it, you have to
* specify a list of pairs of boundary indicators (of type <tt>types::boundary_id</tt>;
* see the section in the documentation of the Triangulation class for more
- * details) and the according functions denoting the dirichlet boundary values
+ * details) and the according functions denoting the Dirichlet boundary values
* of the nodes on boundary faces with this boundary indicator.
*
* Usually, all other boundary conditions, such as inhomogeneous Neumann values
* conflicting constraints in the
* module on @ref constraints .
*
- * This function is explecitly written to
+ * This function is explicitly written to
* use with the FE_Nedelec elements. Thus
* it throws an exception, if it is
* called with other finite elements.
* boundary condition is to be enforced. Note that, as explained below, this
* is one of the few functions where it makes a difference where we call the
* function multiple times with only one boundary indicator, or whether we
- * call the function onces with the whole set of boundary indicators at
+ * call the function once with the whole set of boundary indicators at
* once.
*
* The forth parameter describes the boundary function that is used for
* element space in which the solution vector lives.
* @param[in] fe_function A vector with nodal values representing the
* numerical approximation $u_h$. This vector needs to correspond
- * to the finite element space represented by @p dof
+ * to the finite element space represented by @p dof .
+ * @param[in] exact_solution The exact solution that is used to compute
+ * the error.
* @param[out] difference The vector of values $d_K$ computed as above.
* @param[in] q The quadrature formula used to approximate the integral
* shown above. Note that some quadrature formulas are more useful