Add documentation about unit conversion feature

描述

# 50px -> Munit
>>> 50 * unit.Pixels
0.37037037037037035
# 90 degrees to radians
>>> 90 * unit.Degrees
1.5707963267948966
# 10 % of X-axis
>>> unit.Percent(X_AXIS) * 10
1.4222222222222223

贡献者指南

技术栈

python

领域

documentation

议题类型

documentation

难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。

2

预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。

under 1 hour

活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。

blocked

清晰度议题是否清楚说明期望改动、验收标准和下一步。

clear

前置要求

Python basicsFamiliarity with manim

新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。

50

研究方向

Review the implementation in PR #742 to understand the unit conversion feature. Look at the existing documentation structure in the 'docs/' directory to determine the appropriate placement. The issue provides example code that should be incorporated into the documentation, and you may need to explain the unit types (Pixels, Degrees, Percent) in context. Check if the assignee has made progress, as the issue is already assigned.