fix various typos

unsupported/Eigen/src/IterativeSolvers/ConstrainedConjGrad.h

@@ -165,7 +165,7 @@ void constrained_cg(const TMatrix& A, const CMatrix& C, VectorX& x,
     p = z + gamma*p;
 
     ++iter;
-    // one dimensionnal optimization
+    // one dimensional optimization
     q = A * p;
     lambda = rho / q.dot(p);
     for (Index i = 0; i < C.rows(); ++i)

unsupported/Eigen/src/IterativeSolvers/IDRS.h

@@ -20,7 +20,7 @@ namespace Eigen
 
 	namespace internal
 	{
-		/**     \internal Low-level Induced Dimension Reduction algoritm
+		/**     \internal Low-level Induced Dimension Reduction algorithm
 		        \param A The matrix A
 		        \param b The right hand side vector b
 		        \param x On input and initial solution, on output the computed solution.
@@ -372,7 +372,7 @@ namespace Eigen
 
 			/** \internal */
 			/**     Loops over the number of columns of b and does the following:
-			                1. sets the tolerence and maxIterations
+			                1. sets the tolerance and maxIterations
 			                2. Calls the function that has the core solver routine
 			*/
 			template <typename Rhs, typename Dest>