From 9c0f2cd3025c479b48b7b522de3143b5ea6ebe9a Mon Sep 17 00:00:00 2001
From: eggy <danielchen04@hotmail.ca>
Date: Tue, 17 Jan 2023 21:10:53 -0500
Subject: [PATCH] ece124: add canonical sop/pos

---
 docs/1b/ece124.md | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/docs/1b/ece124.md b/docs/1b/ece124.md
index 89b9691..bc59fe7 100644
--- a/docs/1b/ece124.md
+++ b/docs/1b/ece124.md
@@ -139,6 +139,14 @@ $$M_j=x_1+x_2+\dots +x_n$$
     &=x_1+x_2+x_3
     \end{align*}
 
+A **canonical sum of products (SOP)** is a function expressed as a sum of minterms.
+
+$$f(x_1,x_2,\dots)=\sum m(a,b, \dots)$$
+
+A **canonical product of sums (POS)** is a function expressed as a product of maxterms.
+
+$$f(x_1,x_2,\dots)=\prod M(a,b,\dots)$$
+
 ## VHDL
 
 VHDL is a hardware schematic language.