add initial marp implementation with sample content and build configuration

node_modules/mathjax-full/ts/util/numeric.ts

@@ -0,0 +1,38 @@
+/*************************************************************
+ *
+ *  Copyright (c) 2018-2022 The MathJax Consortium
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+
+/**
+ * @fileoverview  Implements some numeric utility functions
+ *
+ * @author dpvc@mathjax.org (Davide Cervone)
+ */
+
+/**
+ * @param {number[]} A  The array to sum
+ * @return {number}     The summ of the elements in A
+ */
+export function sum(A: number[]): number {
+  return A.reduce((a, b) => a + b, 0);
+}
+
+/**
+ * @param {number[]} A  The array whose maximum entry is sought
+ * @return {number}     The largest entry in the array
+ */
+export function max(A: number[]): number {
+  return A.reduce((a, b) => Math.max(a, b), 0);
+}