diff --git a/geometric_separators.pde b/geometric_separators.pde
index 2d6507a..4424df9 100644
--- a/geometric_separators.pde
+++ b/geometric_separators.pde
@@ -12,7 +12,7 @@ int calc_h = 25;
 PShape reset;
 PShape calculate;
 // Input list
-ArrayList<PShape> input = new ArrayList<PShape>();
+ArrayList<PVector> input = new ArrayList<PVector>();
 
 // Setup
 void setup() {
@@ -38,16 +38,16 @@ void mousePressed() {
     // Get sorted input points
   }
   else {
-    PShape new_ellipse = createShape(ELLIPSE, mouseX - 12.5, mouseY - 12.5, 25, 25);
-    input.add(new_ellipse);
+    PVector new_point = new PVector(mouseX, mouseY);
+    input.add(new_point);
   }
   redraw();
 }
 
 // Estimate centerpoint
-void approxCenter(ArrayList<PShape> input) {
+void approxCenter(ArrayList<PVector> input) {
   if (input.size() == 1) {
-    return ArrayList.get(0);
+    //return ArrayList.get(0);
   }
   else {
     // Sample points
@@ -57,16 +57,16 @@ void approxCenter(ArrayList<PShape> input) {
 
 // Estimate the geometric median - dynamic programming
 void geomMedian() {
-  // Memoization hash tables
-  HashMap<Double> left = new HashMap<Double>():
-  HashMap<Double> right = new HashMap<Double>():
-  HashMap<Double> up = new HashMap<Double>():
-  HashMap<Double> down = new HashMap<Double>():
-  // Sum of squares values
-  ArrayList<Double> leftSq = new ArrayList<Double>();
-  ArrayList<Double> rightSq = new ArrayList<Double>();
-  ArrayList<Double> upSq = new ArrayList<Double>();
-  ArrayList<Double> downSq = new ArrayList<Double>();
+//  // Memoization hash tables
+//  HashMap<Double> left = new HashMap<Double>();
+//  HashMap<Double> right = new HashMap<Double>();
+//  HashMap<Double> up = new HashMap<Double>();
+//  HashMap<Double> down = new HashMap<Double>();
+//  // Sum of squares values
+//  ArrayList<Double> leftSq = new ArrayList<Double>();
+//  ArrayList<Double> rightSq = new ArrayList<Double>();
+//  ArrayList<Double> upSq = new ArrayList<Double>();
+//  ArrayList<Double> downSq = new ArrayList<Double>();
 }
 
 // Draw
@@ -76,8 +76,8 @@ void draw() {
   shape(calculate);
   text("Reset.", reset_x + 25, reset_y - 10);
   text("Calculate.", calc_x + 25, calc_y - 10);
-  for (PShape ellipse : input) {
-    shape(ellipse);
-    fill(255);
+  for (PVector point : input) {
+    point(point.x, point.y);
+    strokeWeight(4);
   }
 }