From 542d396d3bdeae988aca91e8d44bf2057a445e10 Mon Sep 17 00:00:00 2001
From: Richard Roberts <richard.jw.roberts@gmail.com>
Date: Tue, 5 Feb 2013 21:52:51 +0000
Subject: [PATCH] Missing qualifying namespace on sqrt in
 InertialNavFactor_GlobalVelocity.h

---
 gtsam_unstable/dynamics/InertialNavFactor_GlobalVelocity.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gtsam_unstable/dynamics/InertialNavFactor_GlobalVelocity.h b/gtsam_unstable/dynamics/InertialNavFactor_GlobalVelocity.h
index 6d16b2358..8f7f14d7e 100644
--- a/gtsam_unstable/dynamics/InertialNavFactor_GlobalVelocity.h
+++ b/gtsam_unstable/dynamics/InertialNavFactor_GlobalVelocity.h
@@ -377,7 +377,7 @@ public:
 	    /* In practice, square root of the information matrix is represented, so that:
 	     *  R_d (approx)= R / sqrt(delta_t)
 	     * */
-	    return noiseModel::Gaussian::SqrtInformation(model->R()/sqrt(delta_t));
+	    return noiseModel::Gaussian::SqrtInformation(model->R()/std::sqrt(delta_t));
 	}
 
 private: