2 维切线 --- 介绍 ---

本模块是平面几何的经典练习. 系统随机产生一条平面曲线(根据初始选择有直角坐标, 参数坐标和极坐标) 并显示它的方程和图像. 你要做的是计算曲线上给定点处的切线方程或法线方程.

请注意: WIMS 的网页是交互式的: 它们不是通常的 HTML 文件. 只能在线交互地 使用. 您用自动化程序收集的网页是无用的.

• Description: 找出平面曲线的切线或法线. This is the main site of WIMS (WWW Interactive Multipurpose Server): interactive exercises, online calculators and plotters, mathematical recreation and games
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