diff --git a/.gitmodules b/.gitmodules
index fad3d246..645ba838 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -9,3 +9,6 @@
         shallow = true
         branch = "mach"
 
+[submodule "examples/libs/zmath"]
+	path = examples/libs/zmath
+	url = https://github.com/PiergiorgioZagaria/zmath
diff --git a/examples/libs/zmath b/examples/libs/zmath
new file mode 160000
index 00000000..c7f20369
--- /dev/null
+++ b/examples/libs/zmath
@@ -0,0 +1 @@
+Subproject commit c7f20369a142c8a817587da529787597461410a5