英语读书 vs MathBench

英语读书：专为英语学习者打造的英语原著阅读平台，超10000+英文原著。更有精品双语有声书籍，在听觉、视觉中沉浸体验原汁原味的英语阅读，学习地道鲜活的表达，不知不觉提升英语表达能力。 【10000+英文原版书】 ·海量资源，包含人物传记、经典名著、书虫系列、儿童读物、长篇短篇小说、四六级考试、考研外刊等等。英文公版原版书《小王子》、《老人与海》、《傲慢与偏见》、《呼啸山庄》、《小妇人》、《怦然心动》、《简爱》、《悲惨世界》、《金银岛》、《福尔摩斯》、《动物庄园》、《都柏林人》、《远大前程》、《基督山伯爵》的等 ·参考专业难度分级算法，根据阅读能力，分为入门、中级、高级、考研、雅思、托福等 ·海外精选畅销书籍，内容每周更新 【难度分级】 ·对书籍精准难度分级，小学初中高中大学考研等，各种难度都可以匹配； ·快速测试单词掌握量，精准获悉匹配书籍难度。 ·另外还有AR值分级，app提供AR值和蓝思值测试。 【双语阅读功能】 ·提供纯中文、纯英文和中英双语对照的英文图书翻译，满足各种学习需求 ·支持中英切换，快速查词，没有难读的英文书。 ·多种阅读模式，支持模糊阅读，双栏阅读，仿生学阅读； 【名著精品课】 ·每天20分钟带你精读名著，一个月读完人生第一本英文书。 ·专业教研团队制作，基于科学的语言学习理论，让你摆脱中式英语，真正“用英语来思考” ·真人外交全程跟读、讲解，理解意思更轻松、口语发音更准确。 【听书功能】 ·沉浸式听书阅读体验， ·有声英文小说，真人纯正发音 【辅助功能】 ·单词本：重点生词，随时标注；例句助记生词，单词本巩固提升词汇量。 ·支持一键加入书架，一键加入书签，书架和书签方便管理和查看，支持离线阅读。 ·切换各种阅读模式 ·多种字体大小 ·划线笔记分享，随时记录阅读感悟。 ·学习数据，记录你的学习进度，包括学习时间、阅读历史、阅读足迹 ·本地导入书籍，支持txt，pdf，epub等格式，自动排版双语翻译 我们正在不断完善英语读书，欢迎大家多提意见，一经采纳将有好礼相送，联系tatatimes2023@163.com。 New : 每日阅读，参加排行榜活动，VIP会员奖励定时发放，一起来学习吧～ New : 最新推出邀请好友领VIP活动，邀请好友获赠VIP会员时长，赶快参与进来吧～

MathBench turns math into hands-on reasoning. Do the same thing to both sides of a balance until only x remains. Drag parameters until a parabola passes through the target. Bisect an angle with only a compass and straightedge. Every move is checked for equivalence in real time. THREE SUBJECTS, 75 LEVELS Algebra Balance: linear equations, systems, quadratics and inequalities. Multiply by a negative and the sign must flip; divide by an expression in x and you may lose a root. Brainer levels are built around these traps. Graphs: linear, quadratic, inverse and absolute-value functions, shifts and stretches, and solving equations and inequalities by graph. Constructions: perpendicular bisectors, angle bisectors, perpendiculars, parallels, regular hexagons, circumcenter and incenter, tangents to a circle. Each subject has Intro, Core, Brainer and Mixed levels. 30 levels are playable right away; the other 45 unlock with Pro. A daily challenge and a review list bring back levels you solved with help. PRINCIPLE CARDS After each solve, a Principle Card explains why it works using the numbers from your own solve, such as x = (3 ± √17)/4 or 3² + 4² = 25. FIVE TOOLS • Exact fractions: simplify, common denominators, mixed numbers, repeating decimals, prime factorization • Equations: linear and quadratic with exact radicals, inequality intervals, 2×2 and 3×3 linear systems • Graphing: up to three curves with zeros, intersections and vertices • Triangle solver: find the remaining sides, angles and area, including the two-solution case • Statistics: mean, median, mode, range, quartiles, variance and standard deviation, computed exactly as fractions from integers, decimals or fractions Tool results are unlimited; hints are never consumed and undo is unlimited. PRO — ONE-TIME PURCHASE All 75 levels, full Principle Card derivations, step-by-step tool working, and a Free Bench you can edit and save (balance, graph and construction benches). Pro includes every worked answer and all Pro features. The first three fixed sample answers in each subject are free to view; all remaining answers unlock with Pro. One-time purchase. No subscription. PRIVACY All calculations run on your device and work offline. No account and no analytics SDK. Progress syncs through your own private iCloud. NOTE: MathBench is for understanding principles and practicing reasoning. Problems are original, not tied to any textbook, and no exam-score gains are promised. Support, Privacy Policy and Terms of Use are in Settings.