说明：  tensor 　　向量的推广。在一个坐标系下，由若干个数（称为分量）来表示，而在不同坐标系下的分量之间应满足一定的变换规则，如矩阵、多变量线性形式等。一些物理量如弹性体的应力、应变以及运动物体的能量动量等都需用张量来表示。在微分几何的发展中，C.F.高斯、B.黎曼、E.B.克里斯托费尔等人在19世纪就导入了张量的概念，随后由G.里奇及其学生T.列维齐维塔发展成张量分析，A.爱因斯坦在其广义相对论中广泛地利用了张量。
(tensor vector promotion. In a coordinate system, by a number of the number (called weight) expressed in different coordinate system should meet a certain quantity of the transformation rules, such as the matrix, multi-variable linear form. Some physical quantities such as the elastic stress and strain as well as moving objects have energy-momentum tensor needed to express. In the development of differential geometry, CF Gauss, B. Riemann, EB Christoffel, who in the 19th century introduced the concept of tensor, followed by G. Ricci and T. Levi students Qi Weta developed into tensor analysis, A. Einstein)