diff --git a/cat.sh b/cat.sh
index 65115c3..235b5ed 100755
--- a/cat.sh
+++ b/cat.sh
@@ -1,3 +1,3 @@
 #!/bin/bash
 
-cat dll.js pt.js grid.js binheap.js graph.js proto.js utils.js > out.js
+cat dll.js pt.js grid.js binheap.js graph.js proto.js utils.js test.js > out.js
diff --git a/out.js b/out.js
index 6e1f487..009a268 100644
--- a/out.js
+++ b/out.js
@@ -225,7 +225,7 @@ class Point {
 
 	squaredDist(pt) { return this.sub(pt).squaredMag() }
 	dist(pt) { return this.sub(pt).mag() }
-	
+
 	readingOrderCompare(pt) { return this.y < pt.y ? -1 : this.y > pt.y ? 1 : this.x < pt.x ? -1 : this.x > pt.x ? 1 : 0 }
 
 	copy() { return new Point(this.x, this.y) }
@@ -234,6 +234,11 @@ class Point {
 
 Pt = Point
 
+function P(...args) {
+	return new Point(...args)
+}
+
+
 class Grid {
 	constructor(w, h, fill = 0) {
 		this.width = w
@@ -653,8 +658,8 @@ Object.defineProperties(Array.prototype, {
 		}
 	},
 	sum: {
-		value: function() {
-			return this.reduce((a, b) => a + b)
+		value: function(val) {
+			return this.reduce((a, b) => a + b, val)
 		}
 	},
 	flatDeep: {
@@ -793,3 +798,4 @@ utils = {
 	createGridArray: (w, h, fill = undefined) => Array(h).fill().map(() => Array(w).fill(fill))
 }
 
+console.log(P(0, 0))
diff --git a/proto.js b/proto.js
index a8c65af..d2565b6 100644
--- a/proto.js
+++ b/proto.js
@@ -36,8 +36,8 @@ Object.defineProperties(Array.prototype, {
 		}
 	},
 	sum: {
-		value: function() {
-			return this.reduce((a, b) => a + b)
+		value: function(val) {
+			return this.reduce((a, b) => a + b, val)
 		}
 	},
 	flatDeep: {
diff --git a/pt.js b/pt.js
index 883ba98..b83014d 100644
--- a/pt.js
+++ b/pt.js
@@ -53,7 +53,7 @@ class Point {
 
 	squaredDist(pt) { return this.sub(pt).squaredMag() }
 	dist(pt) { return this.sub(pt).mag() }
-	
+
 	readingOrderCompare(pt) { return this.y < pt.y ? -1 : this.y > pt.y ? 1 : this.x < pt.x ? -1 : this.x > pt.x ? 1 : 0 }
 
 	copy() { return new Point(this.x, this.y) }
@@ -62,3 +62,8 @@ class Point {
 
 Pt = Point
 
+function P(...args) {
+	return new Point(...args)
+}
+
+
diff --git a/test.js b/test.js
new file mode 100644
index 0000000..e69de29