diff --git a/CONTRIBUTORS.md b/CONTRIBUTORS.md
index 3f937c955db8..7dab44b7218e 100644
--- a/CONTRIBUTORS.md
+++ b/CONTRIBUTORS.md
@@ -36,6 +36,7 @@ See [CONTRIBUTING.md](CONTRIBUTING.md) for details on how to contribute to Cesiu
    * [Kangning Li](https://github.com/likangning93)
    * [Erik Andersson](https://github.com/erikmaarten)
    * [Austin Eng](https://github.com/austinEng)
+   * [Shehzan Mohammed](https://github.com/shehzan10)
 * [NICTA](http://www.nicta.com.au/)
    * [Chris Cooper](https://github.com/chris-cooper)
    * [Kevin Ring](https://github.com/kring)
diff --git a/Source/Core/Matrix2.js b/Source/Core/Matrix2.js
index ead1b25b2aa8..6fc6f8512d8b 100644
--- a/Source/Core/Matrix2.js
+++ b/Source/Core/Matrix2.js
@@ -1,6 +1,7 @@
 /*global define*/
 define([
         './Cartesian2',
+        './Check',
         './defaultValue',
         './defined',
         './defineProperties',
@@ -8,6 +9,7 @@ define([
         './freezeObject'
     ], function(
         Cartesian2,
+        Check,
         defaultValue,
         defined,
         defineProperties,
@@ -57,13 +59,8 @@ define([
      */
     Matrix2.pack = function(value, array, startingIndex) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(value)) {
-            throw new DeveloperError('value is required');
-        }
-
-        if (!defined(array)) {
-            throw new DeveloperError('array is required');
-        }
+        Check.typeOf.object(value, 'value');
+        Check.defined(array, 'array');
         //>>includeEnd('debug');
 
         startingIndex = defaultValue(startingIndex, 0);
@@ -86,9 +83,7 @@ define([
      */
     Matrix2.unpack = function(array, startingIndex, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(array)) {
-            throw new DeveloperError('array is required');
-        }
+        Check.defined(array, 'array');
         //>>includeEnd('debug');
 
         startingIndex = defaultValue(startingIndex, 0);
@@ -148,9 +143,7 @@ define([
      */
     Matrix2.fromArray = function(array, startingIndex, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(array)) {
-            throw new DeveloperError('array is required');
-        }
+        Check.defined(array, 'array');
         //>>includeEnd('debug');
 
         startingIndex = defaultValue(startingIndex, 0);
@@ -175,9 +168,7 @@ define([
      */
     Matrix2.fromColumnMajorArray = function(values, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(values)) {
-            throw new DeveloperError('values parameter is required');
-        }
+        Check.defined(values, 'values');
         //>>includeEnd('debug');
 
         return Matrix2.clone(values, result);
@@ -193,9 +184,7 @@ define([
      */
     Matrix2.fromRowMajorArray = function(values, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(values)) {
-            throw new DeveloperError('values is required.');
-        }
+        Check.defined(values, 'values');
         //>>includeEnd('debug');
 
         if (!defined(result)) {
@@ -224,9 +213,7 @@ define([
      */
     Matrix2.fromScale = function(scale, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(scale)) {
-            throw new DeveloperError('scale is required.');
-        }
+        Check.typeOf.object(scale, 'scale');
         //>>includeEnd('debug');
 
         if (!defined(result)) {
@@ -257,9 +244,7 @@ define([
      */
     Matrix2.fromUniformScale = function(scale, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (typeof scale !== 'number') {
-            throw new DeveloperError('scale is required.');
-        }
+        Check.typeOf.number(scale, 'scale');
         //>>includeEnd('debug');
 
         if (!defined(result)) {
@@ -290,9 +275,7 @@ define([
      */
     Matrix2.fromRotation = function(angle, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(angle)) {
-            throw new DeveloperError('angle is required.');
-        }
+        Check.typeOf.number(angle, 'angle');
         //>>includeEnd('debug');
 
         var cosAngle = Math.cos(angle);
@@ -320,9 +303,7 @@ define([
      */
     Matrix2.toArray = function(matrix, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(matrix)) {
-            throw new DeveloperError('matrix is required');
-        }
+        Check.typeOf.object(matrix, 'matrix');
         //>>includeEnd('debug');
 
         if (!defined(result)) {
@@ -353,12 +334,13 @@ define([
      */
     Matrix2.getElementIndex = function(column, row) {
         //>>includeStart('debug', pragmas.debug);
-        if (typeof row !== 'number' || row < 0 || row > 1) {
-            throw new DeveloperError('row must be 0 or 1.');
-        }
-        if (typeof column !== 'number' || column < 0 || column > 1) {
-            throw new DeveloperError('column must be 0 or 1.');
-        }
+        Check.typeOf.number(row, 'row');
+        Check.numeric.minimum(row, 0);
+        Check.numeric.maximum(row, 1);
+
+        Check.typeOf.number(column, 'column');
+        Check.numeric.minimum(column, 0);
+        Check.numeric.maximum(column, 1);
         //>>includeEnd('debug');
 
         return column * 2 + row;
@@ -376,15 +358,13 @@ define([
      */
     Matrix2.getColumn = function(matrix, index, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(matrix)) {
-            throw new DeveloperError('matrix is required.');
-        }
-        if (typeof index !== 'number' || index < 0 || index > 1) {
-            throw new DeveloperError('index must be 0 or 1.');
-        }
-        if (!defined(result)) {
-            throw new DeveloperError('result is required');
-        }
+        Check.typeOf.object(matrix, 'matrix');
+
+        Check.typeOf.number(index, 'index');
+        Check.numeric.minimum(index, 0);
+        Check.numeric.maximum(index, 1);
+
+        Check.typeOf.object(result, 'result');
         //>>includeEnd('debug');
 
         var startIndex = index * 2;
@@ -409,18 +389,14 @@ define([
      */
     Matrix2.setColumn = function(matrix, index, cartesian, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(matrix)) {
-            throw new DeveloperError('matrix is required');
-        }
-        if (!defined(cartesian)) {
-            throw new DeveloperError('cartesian is required');
-        }
-        if (typeof index !== 'number' || index < 0 || index > 1) {
-            throw new DeveloperError('index must be 0 or 1.');
-        }
-        if (!defined(result)) {
-            throw new DeveloperError('result is required');
-        }
+        Check.typeOf.object(matrix, 'matrix');
+
+        Check.typeOf.number(index, 'index');
+        Check.numeric.minimum(index, 0);
+        Check.numeric.maximum(index, 1);
+
+        Check.typeOf.object(cartesian, 'cartesian');
+        Check.typeOf.object(result, 'result');
         //>>includeEnd('debug');
 
         result = Matrix2.clone(matrix, result);
@@ -442,15 +418,13 @@ define([
      */
     Matrix2.getRow = function(matrix, index, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(matrix)) {
-            throw new DeveloperError('matrix is required.');
-        }
-        if (typeof index !== 'number' || index < 0 || index > 1) {
-            throw new DeveloperError('index must be 0 or 1.');
-        }
-        if (!defined(result)) {
-            throw new DeveloperError('result is required');
-        }
+        Check.typeOf.object(matrix, 'matrix');
+
+        Check.typeOf.number(index, 'index');
+        Check.numeric.minimum(index, 0);
+        Check.numeric.maximum(index, 1);
+
+        Check.typeOf.object(result, 'result');
         //>>includeEnd('debug');
 
         var x = matrix[index];
@@ -474,18 +448,14 @@ define([
      */
     Matrix2.setRow = function(matrix, index, cartesian, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(matrix)) {
-            throw new DeveloperError('matrix is required');
-        }
-        if (!defined(cartesian)) {
-            throw new DeveloperError('cartesian is required');
-        }
-        if (typeof index !== 'number' || index < 0 || index > 1) {
-            throw new DeveloperError('index must be 0 or 1.');
-        }
-        if (!defined(result)) {
-            throw new DeveloperError('result is required');
-        }
+        Check.typeOf.object(matrix, 'matrix');
+
+        Check.typeOf.number(index, 'index');
+        Check.numeric.minimum(index, 0);
+        Check.numeric.maximum(index, 1);
+
+        Check.typeOf.object(cartesian, 'cartesian');
+        Check.typeOf.object(result, 'result');
         //>>includeEnd('debug');
 
         result = Matrix2.clone(matrix, result);
@@ -505,12 +475,8 @@ define([
      */
     Matrix2.getScale = function(matrix, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(matrix)) {
-            throw new DeveloperError('matrix is required.');
-        }
-        if (!defined(result)) {
-            throw new DeveloperError('result is required');
-        }
+        Check.typeOf.object(matrix, 'matrix');
+        Check.typeOf.object(result, 'result');
         //>>includeEnd('debug');
 
         result.x = Cartesian2.magnitude(Cartesian2.fromElements(matrix[0], matrix[1], scratchColumn));
@@ -542,15 +508,9 @@ define([
      */
     Matrix2.multiply = function(left, right, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(left)) {
-            throw new DeveloperError('left is required');
-        }
-        if (!defined(right)) {
-            throw new DeveloperError('right is required');
-        }
-        if (!defined(result)) {
-            throw new DeveloperError('result is required');
-        }
+        Check.typeOf.object(left, 'left');
+        Check.typeOf.object(right, 'right');
+        Check.typeOf.object(result, 'result');
         //>>includeEnd('debug');
 
         var column0Row0 = left[0] * right[0] + left[2] * right[1];
@@ -575,15 +535,9 @@ define([
      */
     Matrix2.add = function(left, right, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(left)) {
-            throw new DeveloperError('left is required');
-        }
-        if (!defined(right)) {
-            throw new DeveloperError('right is required');
-        }
-        if (!defined(result)) {
-            throw new DeveloperError('result is required');
-        }
+        Check.typeOf.object(left, 'left');
+        Check.typeOf.object(right, 'right');
+        Check.typeOf.object(result, 'result');
         //>>includeEnd('debug');
 
         result[0] = left[0] + right[0];
@@ -603,15 +557,9 @@ define([
      */
     Matrix2.subtract = function(left, right, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(left)) {
-            throw new DeveloperError('left is required');
-        }
-        if (!defined(right)) {
-            throw new DeveloperError('right is required');
-        }
-        if (!defined(result)) {
-            throw new DeveloperError('result is required');
-        }
+        Check.typeOf.object(left, 'left');
+        Check.typeOf.object(right, 'right');
+        Check.typeOf.object(result, 'result');
         //>>includeEnd('debug');
 
         result[0] = left[0] - right[0];
@@ -631,15 +579,9 @@ define([
      */
     Matrix2.multiplyByVector = function(matrix, cartesian, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(matrix)) {
-            throw new DeveloperError('matrix is required');
-        }
-        if (!defined(cartesian)) {
-            throw new DeveloperError('cartesian is required');
-        }
-        if (!defined(result)) {
-            throw new DeveloperError('result is required');
-        }
+        Check.typeOf.object(matrix, 'matrix');
+        Check.typeOf.object(cartesian, 'cartesian');
+        Check.typeOf.object(result, 'result');
         //>>includeEnd('debug');
 
         var x = matrix[0] * cartesian.x + matrix[2] * cartesian.y;
@@ -660,15 +602,9 @@ define([
      */
     Matrix2.multiplyByScalar = function(matrix, scalar, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(matrix)) {
-            throw new DeveloperError('matrix is required');
-        }
-        if (typeof scalar !== 'number') {
-            throw new DeveloperError('scalar is required and must be a number');
-        }
-        if (!defined(result)) {
-            throw new DeveloperError('result is required');
-        }
+        Check.typeOf.object(matrix, 'matrix');
+        Check.typeOf.number(scalar, 'scalar');
+        Check.typeOf.object(result, 'result');
         //>>includeEnd('debug');
 
         result[0] = matrix[0] * scalar;
@@ -696,15 +632,9 @@ define([
      */
     Matrix2.multiplyByScale = function(matrix, scale, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(matrix)) {
-            throw new DeveloperError('matrix is required');
-        }
-        if (!defined(scale)) {
-            throw new DeveloperError('scale is required');
-        }
-        if (!defined(result)) {
-            throw new DeveloperError('result is required');
-        }
+        Check.typeOf.object(matrix, 'matrix');
+        Check.typeOf.object(scale, 'scale');
+        Check.typeOf.object(result, 'result');
         //>>includeEnd('debug');
 
         result[0] = matrix[0] * scale.x;
@@ -723,12 +653,8 @@ define([
      */
     Matrix2.negate = function(matrix, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(matrix)) {
-            throw new DeveloperError('matrix is required');
-        }
-        if (!defined(result)) {
-            throw new DeveloperError('result is required');
-        }
+        Check.typeOf.object(matrix, 'matrix');
+        Check.typeOf.object(result, 'result');
         //>>includeEnd('debug');
 
         result[0] = -matrix[0];
@@ -747,12 +673,8 @@ define([
      */
     Matrix2.transpose = function(matrix, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(matrix)) {
-            throw new DeveloperError('matrix is required');
-        }
-        if (!defined(result)) {
-            throw new DeveloperError('result is required');
-        }
+        Check.typeOf.object(matrix, 'matrix');
+        Check.typeOf.object(result, 'result');
         //>>includeEnd('debug');
 
         var column0Row0 = matrix[0];
@@ -776,12 +698,8 @@ define([
      */
     Matrix2.abs = function(matrix, result) {
         //>>includeStart('debug', pragmas.debug);
-        if (!defined(matrix)) {
-            throw new DeveloperError('matrix is required');
-        }
-        if (!defined(result)) {
-            throw new DeveloperError('result is required');
-        }
+        Check.typeOf.object(matrix, 'matrix');
+        Check.typeOf.object(result, 'result');
         //>>includeEnd('debug');
 
         result[0] = Math.abs(matrix[0]);
@@ -832,9 +750,7 @@ define([
      */
     Matrix2.equalsEpsilon = function(left, right, epsilon) {
         //>>includeStart('debug', pragmas.debug);
-        if (typeof epsilon !== 'number') {
-            throw new DeveloperError('epsilon must be a number');
-        }
+        Check.typeOf.number(epsilon, 'epsilon');
         //>>includeEnd('debug');
 
         return (left === right) ||