一个最值问题的多种思维方法

Ways of Thinking of Constrained and Unconstrained Optimization

利用基本三角恒等式、物理学中几何光学知识和几何画板软件等三种思维方法,来探讨一个最短时间问题的解法。

The author explores the solution to the best time problem according to three ways of thinking, including basic trigonometric identity, geometrical optics of physics and Geometer＇s Sketchpad.