Add SymEngine to the readme file in the documentation

diff --git a/doc/readme.html b/doc/readme.html
index f938801714e633a8f7275a39a9643af79e81fdcc..6c35741edd11ca7bd6bfc3112805f9d9837e6a3b 100644 (file)
--- a/doc/readme.html
+++ b/doc/readme.html
@@ -604,6 +604,16 @@
                     <code>-DSUNDIALS_DIR=/path/to/sundials</code> to the deal.II CMake call.
                 </p>
             </dd>
+            
+            <dt><a name="SymEngine"/>
+                <a href="https://symengine.github.io/" target="_top">SymEngine</a></dt>
+            <dd>
+                <p>
+                    <a href="https://github.com/symengine/symengine/" target="_top">SymEngine</a> is a symbolic manipulation package, implementing the building blocks of a computer algebra system (CAS) similar to <a href="https://www.sympy.org/en/index.html" target="_top">SymPy</a>. In particular, it can be used for symbolic differentiation. For using
+                    <a href="https://symengine.github.io/" target="_top">SymEngine</a> with deal.II, version 0.4 or newer is required. To use a self compiled version, pass
+                    <code>-DSYMENGINE_DIR=/path/to/symengine</code> to the deal.II CMake call.
+                </p>
+            </dd>
 
             <dt><a name="tbb"></a><a href="http://www.threadingbuildingblocks.org/"
             target="_top">Threading Building Blocks (TBB)</a></dt>