Mathspace Ultimate Solver (FINAL FIX)

Extracts, correctly solves, and inputs the right answer in Mathspace
当前为 2025-02-13 提交的版本，查看最新版本。
换行
// ==UserScript==
// @name         Mathspace Ultimate Solver (FINAL FIX)
// @namespace    http://tampermonkey.net/
// @version      7.0
// @description  Extracts, correctly solves, and inputs the right answer in Mathspace
// @author       You
// @match        *://*.mathspace.co/*
// @grant        none
// @require      https://cdnjs.cloudflare.com/ajax/libs/mathjs/11.9.0/math.min.js
// ==/UserScript==

(function() {
    'use strict';

    function waitForElement(selector, callback) {
        const interval = setInterval(() => {
            let element = document.querySelector(selector);
            if (element) {
                clearInterval(interval);
                callback(element);
            }
        }, 500);
    }

    function getQuestionText() {
        let questionElement = document.querySelector('.math-question');
        if (questionElement) {
            let rawQuestion = questionElement.innerText.trim();
            console.log("Extracted Question:", rawQuestion);
            return rawQuestion;
        }
        console.log("Question not found.");
        return null;
    }

    function fixMathExpression(expression) {
        return expression
            .replace(/×/g, '*')          // Convert multiplication
            .replace(/÷/g, '/')          // Convert division
            .replace(/\^/g, '**')        // Convert exponents
            .replace(/([a-zA-Z])(\d+)/g, '$1^$2')  // Convert "n4" to "n^4"
            .replace(/(\d+)\s*\/\s*(\d+)/g, '($1/$2)') // Fix fraction formatting
            .replace(/(\d)([a-zA-Z])/g, '$1*$2'); // Convert implicit multiplication (4n → 4*n)
    }

    function solveMathQuestion(expression) {
        try {
            let formattedExpression = fixMathExpression(expression);
            console.log("Formatted Equation:", formattedExpression);
            let answer = math.simplify(formattedExpression).toString();
            console.log("Solved Answer:", answer);
            return answer;
        } catch (error) {
            console.error("Error solving the equation:", error);
            return "Error";
        }
    }

    function insertAnswer(answer) {
        waitForElement('input', (inputField) => {
            inputField.value = answer;
            inputField.dispatchEvent(new Event('input', { bubbles: true }));
            console.log("Answer inserted:", answer);
            alert("Correct Answer: " + answer);
        });
    }

    function processMathspaceQuestion() {
        let questionText = getQuestionText();
        if (questionText) {
            let answer = solveMathQuestion(questionText);
            insertAnswer(answer);
        }
    }

    setTimeout(processMathspaceQuestion, 3000);
})();