摘要
利用平面闭折线有向面积的概念和行列式的性质推广了一个面积问题.
Promoted an area question by using of the oriented area concept of plane closed folding and the determinant nature.
出处
《高师理科学刊》
2007年第4期26-29,共4页
Journal of Science of Teachers＇College and University
关键词
平面闭折线
有向面积
行列式
plane closed folding
oriented area
determinant
