feat: add static min and max methods

src/matrix.js

@@ -173,6 +173,42 @@ class Matrix extends Array {
         return matrix;
     }
 
+    /**
+     * Returns a matrix whose elements are the minimum between matrix1 and matrix2
+     * @param matrix1
+     * @param matrix2
+     * @returns {Matrix}
+     */
+    static min(matrix1, matrix2) {
+        const rows = matrix1.length;
+        const columns = matrix1[0].length;
+        let result = new Matrix(rows, columns);
+        for (var i = 0; i < rows; i++) {
+            for(var j = 0; j < columns; j++) {
+                result[i][j] = Math.min(matrix1[i][j], matrix2[i][j]);
+            }
+        }
+        return result;
+    }
+
+    /**
+     * Returns a matrix whose elements are the maximum between matrix1 and matrix2
+     * @param matrix1
+     * @param matrix2
+     * @returns {Matrix}
+     */
+    static max(matrix1, matrix2) {
+        const rows = matrix1.length;
+        const columns = matrix1[0].length;
+        let result = new Matrix(rows, columns);
+        for (var i = 0; i < rows; i++) {
+            for(var j = 0; j < columns; j++) {
+                result[i][j] = Math.max(matrix1[i][j], matrix2[i][j]);
+            }
+        }
+        return result;
+    }
+
     /**
      * Check that the provided value is a Matrix and tries to instantiate one if not
      * @param value - The value to check

test/matrix/minMax.js

@@ -0,0 +1,16 @@
+'use strict';
+
+var Matrix = require('../..');
+
+describe('min - max', function () {
+    var matrix1 = new Matrix([[0, 1, 2], [3, 4, 5]]);
+    var matrix2 = new Matrix([[3, 0, 2], [-6, 2, 12]]);
+
+    it('min', function () {
+        Matrix.min(matrix1, matrix2).to2DArray().should.eql([[0, 0, 2], [-6, 2, 5]]);
+    });
+
+    it('max', function () {
+        Matrix.max(matrix1, matrix2).to2DArray().should.eql([[3, 1, 2], [3, 4, 12]]);
+    });
+});