From 005316d4c51cc9b8025c0d57ccbf2192d633146d Mon Sep 17 00:00:00 2001
From: Frans van der Meer <f.p.vandermeer@tudelft.nl>
Date: Tue, 19 Nov 2024 11:14:52 +0100
Subject: [PATCH] Typo in Q8 shape function definition

---
 book/fem/shape.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/book/fem/shape.md b/book/fem/shape.md
index 62296a67..e58b1106 100644
--- a/book/fem/shape.md
+++ b/book/fem/shape.md
@@ -160,7 +160,7 @@ The 9-node quadrilateral element
 A popular alternative is one where the center node is removed, resulting in an 8-node quadrilateral element with the following shape function:
 
 $$
-N_i=a_i+b_ix+c_iy+d_ix^2+e_ixy+f_iy^2+g_ix^2y+h_ixy
+N_i=a_i+b_ix+c_iy+d_ix^2+e_ixy+f_iy^2+g_ix^2y+h_ixy^2
 $$
 
 
-- 
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