These functions can make the courseware to produce the complicacy but accurate effect, such as sinusoid and cosine curve which this courseware demanded.

• 使学生通过事物形、色、声的不变化和发展直接获取知识，感知世界，并且使许多抽象的概念形象化、具体化，更使教学有难有易，增加教学效果，提高教学效率，具体传统教学所不能比拟的优越性。