diff --git a/doc/snippets/MatrixBase_cast.cpp b/doc/snippets/MatrixBase_cast.cpp
new file mode 100644
index 0000000..016880b
--- /dev/null
+++ b/doc/snippets/MatrixBase_cast.cpp
@@ -0,0 +1,3 @@
+Matrix2d md = Matrix2d::Identity() * 0.45;
+Matrix2f mf = Matrix2f::Identity();
+cout << md + mf.cast<double>() << endl;