From 17de59278b8ad3affad9bc3778cb0318cb5451e0 Mon Sep 17 00:00:00 2001
From: Gael Guennebaud <g.gael@free.fr>
Date: Thu, 9 Dec 2010 19:47:02 +0100
Subject: [PATCH] simplification

---
 Eigen/src/Cholesky/LLT.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Eigen/src/Cholesky/LLT.h b/Eigen/src/Cholesky/LLT.h
index 80a248546..ceb532055 100644
--- a/Eigen/src/Cholesky/LLT.h
+++ b/Eigen/src/Cholesky/LLT.h
@@ -200,7 +200,7 @@ template<> struct llt_inplace<Lower>
       Block<MatrixType,Dynamic,Dynamic> A20(mat,k+1,0,rs,k);
 
       RealScalar x = real(mat.coeff(k,k));
-      if (k>0) x -= mat.row(k).head(k).squaredNorm();
+      if (k>0) x -= A10.squaredNorm();
       if (x<=RealScalar(0))
         return false;
       mat.coeffRef(k,k) = x = sqrt(x);