编写程序实现：用rand（）函数生成两个矩阵的各个元素,(1)两个矩阵相加后,生成一个新的矩阵.(2)两个矩阵的乘积.void display(int T[][MAXSIZE],int row,int col)这个是什么意思呢?我是初学者,这个都写

编写程序实现：用rand（）函数生成两个矩阵的各个元素,(1)两个矩阵相加后,生成一个新的矩阵.(2)两个矩阵的乘积.void display(int T[][MAXSIZE],int row,int col)这个是什么意思呢?我是初学者,这个都写
编写程序实现：用rand（）函数生成两个矩阵的各个元素,
(1)两个矩阵相加后,生成一个新的矩阵.
(2)两个矩阵的乘积.
void display(int T[][MAXSIZE],int row,int col)这个是什么意思呢?我是初学者,这个都写超出能力外.
#include
using namespace std;
int main()
{ int a[2][3];
int i,j;
srand(100);
for(i=0;i

编写程序实现：用rand（）函数生成两个矩阵的各个元素,(1)两个矩阵相加后,生成一个新的矩阵.(2)两个矩阵的乘积.void display(int T[][MAXSIZE],int row,int col)这个是什么意思呢?我是初学者,这个都写

(1)两个矩阵相加后,生成一个新的矩阵.

#include <stdio.h>
#include <stdlib.h>       //为rand()及srand()提供函数声明
#include <time.h>
#define MAXSIZE 20
void display(int T[][MAXSIZE], int row, int col)
{
    //函数功能:输出矩阵信息
    int i, j;
                                                                       
    for(i = 0; i < row; i++)
    {
        for(j = 0; j < col; j++)
            printf("%5d", T[i][j]);
        printf("\n");
    }
}
int main()
{
    int A[MAXSIZE][MAXSIZE], B[MAXSIZE][MAXSIZE],C[MAXSIZE][MAXSIZE],
        row, col;
    int i, j;
                                                                       
    /*
    **提示,并接受用户输入的信息
    */
    printf("现在有2个大小相同(同行同列)的矩阵\n");
    printf("矩阵有多少行: ");
    scanf("%d", &row);
    printf("矩阵有多少列: ");
    scanf("%d", &col);
                                                                       
    /*
    **为i行j列的矩阵分配i*j个0到9的随机数 , 并实现两个矩阵的加法
    */
    srand(time(NULL));
    printf("现在分别为2个矩阵随机分配%d个(0~9)随机数", row * col);
    for(i = 0; i < row; i++)
        for(j = 0; j < col; j++)
        {
            //生成随机数
            A[i][j] = rand()/(RAND_MAX/10);
            B[i][j] = rand()/(RAND_MAX/10);
                                                                               
            //实现A+B        
            C[i][j] = A[i][j] + B[i][j];
        }
                                                                           
    /*
    **输出矩阵的信息
    */
    printf("\n矩阵A的信息: \n");
    display(A, row, col);
    printf("\n矩阵B的信息: \n");
    display(B, row, col);
    printf("\n矩阵A+B的信息: \n");
    display(C, row, col);
                                                                           
    return 0;
}

(2)两个矩阵的乘积.

#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#define MAXROW 10 + 5
#define MAXCOL 10 + 5
int main()
{
    int A[MAXROW][MAXCOL], B[MAXROW][MAXCOL], C[MAXROW][MAXCOL];
    int i, j, k, A_row, A_col, B_row, B_col;
                                                   
    srand(time(NULL));
                                                   
    printf("请输入第一个矩阵的行和列, 例如9行3列, 可以输入9 3: ");
    scanf("%d%d", &A_row, &A_col);
                                                   
    printf("请输入第二个矩阵的行和列, 例如9行3列, 可以输入9 3: ");
    scanf("%d%d", &B_row, &B_col);
                                                   
    //输入不合法, 结束程序
    if(A_col != B_row)
    {
        printf("因为第一个矩阵的列数和第二个矩阵的行数不相等, 所以它们的乘法是未定义的.\n结束\n");
        return 0;
    }
                                                   
    //插入随机数
    for(i = 0; i < A_row; i++)
        for(j = 0; j < A_col; j++)
            A[i][j] = rand()/(RAND_MAX/10);
                                                   
    for(i = 0; i < B_row; i++)
        for(j = 0; j < B_col; j++)
            B[i][j] = rand()/(RAND_MAX/10);
                                                   
                                                   
    for(i = 0; i < A_row; i++)
    {
        for(j = 0; j < B_col; j++)
        {
            C[i][j] = 0;
            for(k = 0; k < A_col; k++)
                C[i][j] += A[i][k] * B[k][j];
        }
    }
                                                   
    printf("第一个矩阵的数据是: \n");
    for(i = 0; i < A_row; i++)
    {
        for(j = 0; j < A_col; j++)
            printf("%5d", A[i][j]);
        printf("\n");
    }
                                                   
    printf("第二个矩阵的数据是: \n");
    for(i = 0; i < B_row; i++)
    {
        for(j = 0; j < B_col; j++)
            printf("%5d", B[i][j]);
        printf("\n");
    }
                                                   
    printf("两个矩阵相乘后的数据是: \n");
    for(i = 0; i < A_row; i++)
    {
        for(j = 0; j < B_col; j++)
            printf("%5d", C[i][j]);
        printf("\n");
    }
                                                           
    return 0;
}

PS:若有不明白的地方,可以追问