src/app/page.tsx

@@ -2,7 +2,7 @@
 
 import React, { useState } from 'react';
 import { Box, Button, Output } from "./modules";
-import { calculate_click, downloadLP, import_click } from "./scripts"
+import { calculate_clickMaximize, calculate_clickMinimize, downloadLP, import_click } from "./scripts"
 import text from "./lang"
 
 export default function Home() {
@@ -19,7 +19,8 @@ export default function Home() {
   const tr_boxVarsDesc = text(language, "boxVarsDesc");
   const tr_boxOut = text(language, "boxOut");
   const tr_boxExportLP = text(language, "boxExportLP");
-  const tr_calc = text(language, "buttonCalc");
+  const tr_calc_max = text(language, "maximize");
+  const tr_calc_min = text(language, "minimize");
 
   const handleLanguageChange = (event: React.ChangeEvent<HTMLSelectElement>) => {
     setLanguage(event.target.value);
@@ -59,9 +60,13 @@ export default function Home() {
         placeholder={tr_boxVarsDesc}
         id="vars" />
       <Button
-        title={tr_calc}
+        title={tr_calc_max}
         className={"button_green"}
-        onClickFunc={calculate_click} />
+        onClickFunc={calculate_clickMaximize} />
+      <Button
+        title={tr_calc_min}
+        className={"button_green"}
+        onClickFunc={calculate_clickMinimize} />
       <Button
         title={tr_boxExportLP}
         className={"button"}

src/app/scripts.ts

@@ -128,7 +128,7 @@ function isInputFilled(obj: string | undefined, subj: string | undefined, bounds
   return true;
 }
 
-export function calculate_click() {
+function calculate_click(maximize: boolean) {
   customLogClear();
   const timer = walltimeStart();
   customLog("calculating");
@@ -214,7 +214,11 @@ export function calculate_click() {
   // catch error: variables field has invalid characters
   if (!isInputValidRegex(objective, subject, bounds, variables)) return;
 
-  let wholeText: string = "Maximize\n obj: " + objective
+  // fetch operator
+  let operator = "Minimize";
+  if (maximize) operator = "Maximize";
+
+  let wholeText: string = operator + "\n obj: " + objective
     + "\nSubject To \n" + subject
     + "\nBounds \n" + bounds
     + "\nGenerals \n" + variables
@@ -298,7 +302,13 @@ function downloadLPFormatting(objective: any, subject: any, bounds: any) {
   return lpFormat;
 }
 
+export function calculate_clickMaximize() {
+  calculate_click(true);
+}
 
+export function calculate_clickMinimize() {
+  calculate_click(false);
+}
 
 
 function downloadProblemDownload(content: string) {