请将以下文档总结为5句话，同时需要保留教师手写输入数学公式的手机APP这一内容。 Saw an interesting project recently: a mobile app specifically designed for teachers to easily input handwritten mathematical formulas. This app permits multiple input methods such as typing, voice input, and of course, handwritten input. Once the input is recognized, the app can instantly convert the handwriting into digital equations, making it very convenient for teachers to prepare lessons, create quizzes, or write papers. It also supports cloud syncing, so teachers can access their content from multiple devices. The app is free to download, and an in-app subscription unlocks additional features like advanced equation solving and graphing capabilities.
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最近看到一个有趣的项目：一款专为教师设计的手机应用程序，用于轻松输入手写的数学公式。该应用程序支持多种输入方式，包括键盘输入、语音输入以及手写输入。手写输入一经识别，应用程序可立即将其转换为数字方程，为教师备课、制作测验或撰写论文提供了极大便利。此外，该应用还支持云同步，使教师能够从多个设备访问内容。应用可免费下载，通过应用程序内订阅可解锁高级解方程和绘图功能。
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