]> https://gitweb.dealii.org/ - dealii.git/commitdiff
Show a formula. 14146/head
authorWolfgang Bangerth <bangerth@colostate.edu>
Mon, 18 Jul 2022 21:18:50 +0000 (15:18 -0600)
committerWolfgang Bangerth <bangerth@colostate.edu>
Wed, 20 Jul 2022 02:09:25 +0000 (20:09 -0600)
include/deal.II/base/symmetric_tensor.h

index bd6c92434fb8d83e29d78b5d0d25a13bca3dfafb..d69798c9a6c12a5411ed096647012f4f6cb7c338 100644 (file)
@@ -37,6 +37,10 @@ class SymmetricTensor;
 /**
  * Return a unit symmetric tensor of rank 2, i.e., the
  * $\text{dim}\times\text{dim}$ identity matrix $\mathbf I$.
+ * For example, if `dim==2`, then this matrix has the form
+ * @f[
+ *   I_{2\times 2} = \begin{pmatrix} 1 & 0 \\ 0 & 1 \end{pmatrix}.
+ * @f]
  *
  * @relatesalso SymmetricTensor
  */

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