Fix small typos in intro.dox

diff --git a/examples/step-66/doc/intro.dox b/examples/step-66/doc/intro.dox
index 920d5602357d35b0a8620e3c14b90b28faf28a50..b8516abd8b3ff722f6574fc8ac415bc90639c516 100644 (file)
--- a/examples/step-66/doc/intro.dox
+++ b/examples/step-66/doc/intro.dox
@@ -130,7 +130,7 @@ use of the member functions FEValuesBase::get_function_values() and
 FEValuesBase::get_function_gradients(). This is how step-15, for
 example, does things.
 The <code>assemble_system()</code>
-function would then looks like:
+function would then look like:
 @code
 template <int dim>
 void GelfandProblem<dim>::assemble_system()
@@ -185,7 +185,7 @@ void GelfandProblem<dim>::assemble_system()
                 }
 
               cell_rhs(i) += (-grad_phi_i * newton_step_gradients[q] +
-                              phi_i * newton_step_values[q]) *
+                              phi_i * nonlinearity) *
                              dx;
             }
         }