摘要
分析了李萨如图形的形成机理,用EWB演示不同频率比、振幅比和初相位条件下的李萨如图形,能使学生直观感受到图形的合成过程及图形的绕行方向,从而提高学生对李萨如图形的认识,有利于提高教学质量.
This paper analyzes the formation mechanism of Lissajous figures and uses EWB to demonstrate them in different frequency ratios, amplitudes and initial phases. It gives students a direct impression of the forming process and winding direction of the figures. Therefore, it helps them understand Lissajous figures and is advantageous to the improvement of teaching quality.
出处
《石家庄职业技术学院学报》
2008年第6期48-50,共3页
Journal of Shijiazhuang College of Applied Technology
关键词
李萨如图形
形成
演示
Lissajous figure
formation
demonstration
作者简介
田清华（1977-），女，河北栾城人，钉家庄职业技术学院讲师
