摘要
文章给出平面三直线行列式的一个关系定理和线型三角形有向面积公式,并通过实例讨论了公式的一些应用。
In this paper,a theorem of the determinants of three lines is obtained.The formula for directed area of tri-linear triangles is given and some applications of the formula are discussed through examples.
出处
《南昌航空大学学报（自然科学版）》
CAS
2010年第3期51-55,共5页
Journal of Nanchang Hangkong University(Natural Sciences)
关键词
三角形
行列式
有向面积
共点
triangle
determinant
directed area
concurrent
