diff --git a/300s School/ME 2046 - Digital Control Theory/Homework 3/simplifying.m b/300s School/ME 2046 - Digital Control Theory/Homework 3/simplifying.m
new file mode 100644
index 000000000..324149f89
--- /dev/null
+++ b/300s School/ME 2046 - Digital Control Theory/Homework 3/simplifying.m	
@@ -0,0 +1 @@
+syms z_inv