From 3227766569f593b7c7d8ee9070ae09311e2980da Mon Sep 17 00:00:00 2001
From: thduynguyen <thduynguyen@gmail.com>
Date: Sun, 19 Oct 2014 00:35:01 -0400
Subject: [PATCH] small comment typo

---
 gtsam/linear/JacobianFactor.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gtsam/linear/JacobianFactor.cpp b/gtsam/linear/JacobianFactor.cpp
index 7881883b7..2a0ffecac 100644
--- a/gtsam/linear/JacobianFactor.cpp
+++ b/gtsam/linear/JacobianFactor.cpp
@@ -646,7 +646,7 @@ void JacobianFactor::gradientAtZero(double* d) const {
 
 /* ************************************************************************* */
 Vector JacobianFactor::gradient(Key key, const VectorValues& x) const {
-  if (isConstrained()) { // Untested. But see the explaination in gradientAtZero()
+  if (isConstrained()) { // Untested. But see the explanation in gradientAtZero()
     Matrix A = getA(find(key));
     return A.transpose()*ones(rows());
   }