* block() for vectors ---> segment()

* documentation improvements, especially in quickstart guide

doc/examples/Tutorial_simple_example_dynamic_size.cpp

@@ -1,23 +1,22 @@
 #include <Eigen/Core>
 
-// import most common Eigen's types 
+// import most common Eigen types 
 USING_PART_OF_NAMESPACE_EIGEN
 
 int main(int, char *[])
 {
   for (int size=1; size<=4; ++size)
   {
-    MatrixXi m(size,size+1);          // a size x (size+1) matrix of int
-    for (int j=0; j<m.cols(); ++j)    // loop over the columns
-      for (int i=0; i<m.rows(); ++i)  // loop over the rows
-        m(i,j) = i+j*m.rows();        // to access matrix elements
-                                      // use operator (int,int)
+    MatrixXi m(size,size+1);         // a (size)x(size+1)-matrix of int's
+    for (int j=0; j<m.cols(); ++j)   // loop over columns
+      for (int i=0; i<m.rows(); ++i) // loop over rows
+        m(i,j) = i+j*m.rows();       // to access matrix coefficients,
+                                     // use operator()(int,int)
     std::cout << m << "\n\n";
   }
 
-  VectorXf v4(4);
-  // to access vector elements
-  // you can use either operator () or operator []
-  v4[0] = 1; v4[1] = 2; v4(2) = 3; v4(3) = 4;
-  std::cout << "\nv4:\n" << v4 << std::endl;
+  VectorXf v(4); // a vector of 4 float's
+  // to access vector coefficients, use either operator () or operator []
+  v[0] = 1; v[1] = 2; v(2) = 3; v(3) = 4;
+  std::cout << "\nv:\n" << v << std::endl;
 }

doc/examples/Tutorial_simple_example_fixed_size.cpp

@@ -1,6 +1,6 @@
 #include <Eigen/Core>
 
-// import most common Eigen's types 
+// import most common Eigen types 
 USING_PART_OF_NAMESPACE_EIGEN
 
 int main(int, char *[])