1 files changed, 2 insertions, 1 deletions
diff --git a/src/com/android/gallery3d/data/LocationClustering.java b/src/com/android/gallery3d/data/LocationClustering.java
index 788060cf0..9f3a35890 100644
--- a/src/com/android/gallery3d/data/LocationClustering.java
+++ b/src/com/android/gallery3d/data/LocationClustering.java
@@ -23,6 +23,7 @@ import com.android.gallery3d.util.GalleryUtils;
 import android.content.Context;
 import android.os.Handler;
 import android.os.Looper;
+import android.util.FloatMath;
 import android.widget.Toast;
 
 import java.util.ArrayList;
@@ -294,7 +295,7 @@ class LocationClustering extends Clustering {
             }
 
             // step 5: calculate the final score
-            float score = totalDistance * (float) Math.sqrt(realK);
+            float score = totalDistance * FloatMath.sqrt(realK);
 
             if (score < bestScore) {
                 bestScore = score;