论文部分内容阅读
贵刊92年第3期的“问题选答”栏中有“怎样渡河航线最短”的解答,看了以后很受启发,但又觉得解答不够直观,且用到求导知识,学生看不懂,这里我另提供一种矢量作图的解法供参考.
The answer to the question “What is the shortest route across the river?” in the “Questions and Answers” column in the 3rd issue of the 92 issue of your journal was very inspiring after reading it, but it also felt that the answer was not intuitive and used knowledge for guidance. Students do not understand, here I also provide a vector mapping solution for reference.