diff --git a/src/gm/LR_1_v8.java b/src/gm/LR_1_v8.java
index c20b8f2..be50c38 100644
--- a/src/gm/LR_1_v8.java
+++ b/src/gm/LR_1_v8.java
@@ -17,11 +17,11 @@ public class LR_1_v8 extends Application {
     private static final double ARROW_HEIGHT = 0.2;
     private static final double[][] ARROW_PTS = {
         // x, y
+        {ARROW_WIDTH, 0.0},
+        {0.0, 0.0},
+        {2d * ARROW_WIDTH / 5d, ARROW_HEIGHT},
+        {2d * ARROW_WIDTH / 5d, -ARROW_HEIGHT},
         {0.0, 0.0},
-        {ARROW_WIDTH, 0.0},
-        {4d * ARROW_WIDTH / 5d, ARROW_HEIGHT},
-        {4d * ARROW_WIDTH / 5d, -ARROW_HEIGHT},
-        {ARROW_WIDTH, 0.0},
     };
     
     private static final double N = 30;
@@ -33,6 +33,7 @@ public class LR_1_v8 extends Application {
 
     @Override
     protected void paint(GraphicsExt g) {
+        drawArrow(g, 1d);
         double x1 = 0, y1 = 2.5;
         for (int i = 0; i < N; i++) {
             final double scaleValue = (i / 24d);
@@ -40,7 +41,7 @@ public class LR_1_v8 extends Application {
             double y2 = y1 + Math.sin(x2) / 5d;
             g.reset();
             g.translate(x2, y2);
-            g.rotate(-Math.atan2(y2 - y1, x2 - x1));
+            g.rotate(Math.atan2(y2 - y1, x1 - x2));
             drawArrow(g, scaleValue);
             x1 = x1 + ARROW_WIDTH * scaleValue; 
             y1 = y2;