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Support

输入与操作

输入 y=f(x)，也可省略 y=。支持四则运算、括号、右结合乘方、隐式乘法及 sin、cos、tan、sqrt、cbrt、abs、ln、log、exp。ln 为自然对数，log 为常用对数。角度单位在设置切换。

最多六条曲线。点击色点更换颜色；点击公式编辑；左滑删除，右滑置顶；函数菜单提供相同操作。删除后可在顶部撤销。拖动画布平移，双指缩放，长按读取所选函数坐标。

保存与恢复

“我的图组”可保存当前页面、新建空白页和恢复最近50条页面记录。收藏后修改会更新同一图组。工作区自动保存在本地；重启会恢复。清空历史不会删除已保存页面。

iPad 与不同窗口

宽窗口显示函数侧栏，窄窗口使用底部面板。可收起侧栏扩大画布。若切换窗口后键盘遮挡输入，请滚动函数面板或收起键盘；遇到异常可反馈窗口尺寸和系统版本。

私人支持与隐私请求

私人问题、访问、更正及删除请求请发至 maxfunctions.help@outlook.com。为定位记录，只需提供原联系邮箱、报告日期或问题链接等必要信息；不要在公开Issue中发送身份证件、银行或其他敏感资料。

TestFlight测试可使用“发送Beta反馈”。处理用途、开发者保存期限、第三方平台的独立记录及用户权利见隐私政策。购买与退款可通过Apple的购买记录和支持渠道申请，适用法定消费者权利不受影响。

反馈问题

请在公开问题页面提交问题。附上应用版本、系统版本、复现步骤，以及不含个人信息的公式示例。反馈需要 GitHub 账号，阅读本页面无需登录。购买与退款通过 Apple 的购买记录和支持渠道处理。

Expressions and controls

Enter y=f(x), or omit y=. Supported operations include arithmetic, parentheses, right-associative powers, implicit multiplication, sin, cos, tan, sqrt, cbrt, abs, ln, log, and exp. ln means natural logarithm; log means base 10. Change radians or degrees in Settings.

Plot up to six curves. Tap a color dot or formula to edit it. Swipe left to delete or right to move a function to the top; the function menu also provides these actions. Undo a deletion using the top notification. Drag to pan, pinch to zoom, and hold to inspect a selected curve.

Pages, favorites, and history

My pages provides Save page, New page, and History for the 50 most recent pages. Favorited pages update as you edit them. The workspace restores after restart. Clearing history does not delete saved pages.

iPad and window sizes

Wide windows show a collapsible function sidebar. Narrow windows use a bottom panel. The layout adapts to rotation and split views while retaining your work.

Private support and privacy requests

Email maxfunctions.help@outlook.com for private support, access, correction or deletion. Provide only what is needed to locate a record, such as the original email, report date or issue link. Do not post identity, bank or other sensitive records in public issues.

Beta testers can use Send Beta Feedback in TestFlight. See the privacy policy for purposes, developer retention, independent platform records and your rights. Purchase and refund requests may be made through Apple's purchase history and support; statutory consumer rights are unaffected.

Contact

Report problems in the public issue tracker, including app version, OS version, steps, and a nonsensitive expression example. GitHub sign-in is required to submit an issue; reading this help is public. Contact Apple through your purchase history for purchases and refunds. Do not publish personal or payment information.

技术支持Support