From: Reza Rastak <rastak@stanford.edu>
Date: Fri, 10 May 2019 21:37:14 +0000 (-0700)
Subject: duplicated documentation removed. unnecessary implementation of function specializati... 
X-Git-Tag: v9.1.0-rc1~67^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F8082%2Fhead;p=dealii.git

duplicated documentation removed. unnecessary implementation of function specialization removed
---

diff --git a/include/deal.II/base/symmetric_tensor.h b/include/deal.II/base/symmetric_tensor.h
index f164142472..ed2b550596 100644
--- a/include/deal.II/base/symmetric_tensor.h
+++ b/include/deal.II/base/symmetric_tensor.h
@@ -31,15 +31,15 @@ DEAL_II_NAMESPACE_OPEN
 template <int rank, int dim, typename Number = double>
 class SymmetricTensor;
 
-template <int dim, typename Number>
+template <int dim, typename Number = double>
 SymmetricTensor<2, dim, Number>
 unit_symmetric_tensor();
 
-template <int dim, typename Number>
+template <int dim, typename Number = double>
 SymmetricTensor<4, dim, Number>
 deviator_tensor();
 
-template <int dim, typename Number>
+template <int dim, typename Number = double>
 SymmetricTensor<4, dim, Number>
 identity_tensor();
 
@@ -3310,23 +3310,6 @@ unit_symmetric_tensor()
 
 
 
-/**
- * Return a unit symmetric tensor of rank 2, i.e., the dim-by-dim identity
- * matrix. This specialization of the function uses <code>double</code> as the
- * data type for the elements.
- *
- * @relatesalso SymmetricTensor
- * @author Wolfgang Bangerth, 2005
- */
-template <int dim>
-inline SymmetricTensor<2, dim>
-unit_symmetric_tensor()
-{
-  return unit_symmetric_tensor<dim, double>();
-}
-
-
-
 /**
  * Return the tensor of rank 4 that, when multiplied by a symmetric rank 2
  * tensor <tt>t</tt> returns the deviator $\textrm{dev}\ t$. It is the
@@ -3368,29 +3351,6 @@ deviator_tensor()
 
 
 
-/**
- * Return the tensor of rank 4 that, when multiplied by a symmetric rank 2
- * tensor <tt>t</tt> returns the deviator <tt>dev t</tt>. It is the operator
- * representation of the linear deviator operator.
- *
- * For every tensor <tt>t</tt>, there holds the identity
- * <tt>deviator(t)==deviator_tensor&lt;dim&gt;()*t</tt>, up to numerical
- * round-off. The reason this operator representation is provided is that one
- * sometimes needs to invert operators like <tt>identity_tensor&lt;dim&gt;() +
- * delta_t*deviator_tensor&lt;dim&gt;()</tt> or similar.
- *
- * @relatesalso SymmetricTensor
- * @author Wolfgang Bangerth, 2005
- */
-template <int dim>
-inline SymmetricTensor<4, dim>
-deviator_tensor()
-{
-  return deviator_tensor<dim, double>();
-}
-
-
-
 /**
  * Return the fourth-order symmetric identity tensor which maps symmetric
  * second-order tensors to themselves.
@@ -3439,36 +3399,6 @@ identity_tensor()
 
 
 
-/**
- * Return the tensor of rank 4 that, when multiplied by a symmetric rank 2
- * tensor <tt>t</tt> returns the deviator <tt>dev t</tt>. It is the operator
- * representation of the linear deviator operator.
- *
- * Note that this tensor, even though it is the identity, has a somewhat funny
- * form, and in particular does not only consist of zeros and ones. For
- * example, for <tt>dim=2</tt>, the identity tensor has all zero entries
- * except for <tt>id[0][0][0][0]=id[1][1][1][1]=1</tt> and
- * <tt>id[0][1][0][1]=id[0][1][1][0]=id[1][0][0][1]=id[1][0][1][0]=1/2</tt>.
- * To see why this factor of 1/2 is necessary, consider computing <tt>A=Id .
- * B</tt>. For the element <tt>a_01</tt> we have <tt>a_01=id_0100 b_00 +
- * id_0111 b_11 + id_0101 b_01 + id_0110 b_10</tt>. On the other hand, we need
- * to have <tt>a_01=b_01</tt>, and symmetry implies <tt>b_01=b_10</tt>,
- * leading to <tt>a_01=(id_0101+id_0110) b_01</tt>, or, again by symmetry,
- * <tt>id_0101=id_0110=1/2</tt>. Similar considerations hold for the three-
- * dimensional case.
- *
- * @relatesalso SymmetricTensor
- * @author Wolfgang Bangerth, 2005
- */
-template <int dim>
-inline SymmetricTensor<4, dim>
-identity_tensor()
-{
-  return identity_tensor<dim, double>();
-}
-
-
-
 /**
  * Invert a symmetric rank-2 tensor.
  *