Get the maindiagonal of a matrix, or put a vector into the maindiagonal of a matrix.
取得的主要矩阵，或将一个向量到对角线的主要矩阵对角线。
2
A special matrix structure was adopted, that is, each row and each column has one matrix element, and the matrix elements are on the maindiagonal symmetry.
我们取特殊的矩阵结构，矩阵每行，每列都有一个矩阵元，并且矩阵元位置是关于主对角线对称的。
3
This element is receded, in relation to the volume of the terrace, so the spatial emphasis is on the maindiagonal visuals previously mentioned (south-southeast).