【单选题】The Adjoint matrix of Matrix B [1, 2, -1; 0, 1, 0; -5, 2, 3] is
A.
[3, 8, 1; 0, -2, 0; 5, 12, 1]
B.
[3, 0, 5; 8, -2, 12; 1, 0, 1]
C.
[3, 0, 5; -8, -2, -12; 1, 0, 1]
D.
[3, -8, 1; 0, -2, 0; 5, -12, 1]
【单选题】创新性产品相对于功能性产品具有以下( )特征。
【简答题】二维数组Matrix定义如下: int [,] Matrix = new int[5, 8]; 下面是实现按列遍历Matrix的代码,请填写完整。 for (int i = 0; i < ________; i++) { for (int j=0; j < ________; j++) { Console.WriteLine("{0}", Matrix[ ________, ________ ...
【简答题】#include using namespace std; class Matrix { public: Matrix(int r,int c) { row=r; col=c; elem=new double[row*col]; } double &operator( )(int x,int y) { return elem[col*(x-1)+y-1]; } ~Matrix() {de...
【判断题】适度放牧可促进禾本科植物分蘖,提高草原的生物量。
【简答题】#include class Matrix { public: Matrix(int r,int c){row=r;col=c;elem=new double[row*col];} double& operator()(int x,int y) {return elem[col*(x-1)+y-1]; } double operator()(int x,int y) const {retur...
【判断题】int [,] Matrix = {{1,2,3},{4,5,6}}