Added prod and sum functions for arrays

Algorithms.ts

@@ -21,6 +21,7 @@ Copyright (C) 2021  Matthew Ellison
 */
 
 
+import { SSL_OP_SSLEAY_080_CLIENT_DH_BUG } from "constants";
 import { InvalidResult } from "./InvalidResult";
 
 
@@ -387,3 +388,34 @@ export function getFactorsBig(goalNumber: bigint): bigint[]{
 	//Return the list of factors
 	return factors;
 }
+
+export function getSum(ary: number[]): number{
+	let sum: number = 0;
+	ary.forEach(a => sum += a);
+	return sum;
+}
+export function getSumBig(ary: bigint[]): bigint{
+	let sum: bigint = 0n;
+	ary.forEach(a => sum += a);
+	return sum;
+}
+export function getProd(ary: number[]): number{
+	//Return 0 if the array is empty
+	if(ary.length == 0){
+		return 0;
+	}
+
+	let prod: number = 1;
+	ary.forEach(a => prod *= a);
+	return prod;
+}
+export function getProdBig(ary: bigint[]): bigint{
+	//Return 0 if the array is empty
+	if(ary.length == 0){
+		return 0n;
+	}
+
+	let prod: bigint = 1n;
+	ary.forEach(a => prod *= a);
+	return prod;
+}