From 933565c045322cd25c34dd08431ee547933666ad Mon Sep 17 00:00:00 2001
From: alexma3312 <alexma3312@gmail.com>
Date: Sat, 26 Sep 2020 12:05:17 -0400
Subject: [PATCH] Emphasize Rdb is a vector.

---
 gtsam_unstable/geometry/Similarity3.cpp | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/gtsam_unstable/geometry/Similarity3.cpp b/gtsam_unstable/geometry/Similarity3.cpp
index e78a3925e..52b33d5a6 100644
--- a/gtsam_unstable/geometry/Similarity3.cpp
+++ b/gtsam_unstable/geometry/Similarity3.cpp
@@ -43,9 +43,9 @@ namespace{
     Point3 da, db;
     for (const Point3Pair& d_abPair : d_abPointPairs) {
       std::tie(da, db) = d_abPair;
-      Vector3 Rdb = aRb * db;
-      y += da.transpose() * Rdb;
-      x += Rdb.transpose() * Rdb;
+      const Vector3 da_prime = aRb * db;
+      y += da.transpose() * da_prime;
+      x += da_prime.transpose() * da_prime;
     }
     const double s = y / x;
     return s;