diff --git a/doc/snippets/Cwise_log10.cpp b/doc/snippets/Cwise_log10.cpp
new file mode 100644
index 0000000..b7ae4a8
--- /dev/null
+++ b/doc/snippets/Cwise_log10.cpp
@@ -0,0 +1,2 @@
+Array4d v(-1,0,1,2);
+cout << log10(v) << endl;