摘要
将三角形中的余弦定律进行推广,得到一般平面封闭折线的余弦定律.
In this paper,the cosine law of general closed planar broken line is acquired by generalizing cosine law of triangle.
出处
《赣南师范学院学报》
2003年第6期6-7,共2页
Journal of Gannan Teachers' College(Social Science(2))
关键词
余弦定律
推广
一般平面封闭折线
cosine law
generalization
general closed planar broken line
