From 6258c16a117e615c867e71cc0cc4e25fc26ceb8b Mon Sep 17 00:00:00 2001
From: eggy <danielchen04@hotmail.ca>
Date: Tue, 31 Oct 2023 14:13:27 -0400
Subject: [PATCH] ece205: add reverse unit step

---
 docs/2a/ece205.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/docs/2a/ece205.md b/docs/2a/ece205.md
index 9440568..2ccebb1 100644
--- a/docs/2a/ece205.md
+++ b/docs/2a/ece205.md
@@ -156,6 +156,13 @@ $$
 \mathcal L\{u_c(t)g(t)\}=e^{-sc}\mathcal L\{g(t+c)\},s>s_0
 $$
 
+Likewise, under the same conditions, shifting it twice restores it back to the original.
+
+$$
+\mathcal L\{u_c(t)f(t-c)\}=e^{-sc}\mathcal L\{f\}
+$$
+
+
 ## Resources
 
 - [Laplace Table](/resources/ece/laplace.pdf)