C程序，通过将矩阵传递给函数来将两个矩阵相乘

该程序要求用户输入矩阵的大小(行和列)。

然后，它要求用户输入这些矩阵的元素，最后添加并显示结果。

要执行此任务，需要执行三个功能：

To从用户enterData()获取矩阵元素
要相乘两个矩阵， multiplyMatrices()
在乘法后display()结果矩阵display()

示例：通过将矩阵传递给函数来相乘

#include 

void enterData(int firstMatrix[][10], int secondMatrix[][10], int rowFirst, int columnFirst, int rowSecond, int columnSecond);
void multiplyMatrices(int firstMatrix[][10], int secondMatrix[][10], int multResult[][10], int rowFirst, int columnFirst, int rowSecond, int columnSecond);
void display(int mult[][10], int rowFirst, int columnSecond);

int main()
{
    int firstMatrix[10][10], secondMatrix[10][10], mult[10][10], rowFirst, columnFirst, rowSecond, columnSecond, i, j, k;

    printf("Enter rows and column for first matrix: ");
    scanf("%d %d", &rowFirst, &columnFirst);

    printf("Enter rows and column for second matrix: ");
    scanf("%d %d", &rowSecond, &columnSecond);

    // If colum of first matrix in not equal to row of second matrix, asking user to enter the size of matrix again.
    while (columnFirst != rowSecond)
    {
        printf("Error! column of first matrix not equal to row of second.\n");
        printf("Enter rows and column for first matrix: ");
        scanf("%d%d", &rowFirst, &columnFirst);
        printf("Enter rows and column for second matrix: ");
        scanf("%d%d", &rowSecond, &columnSecond);
    }

    // Function to take matrices data
        enterData(firstMatrix, secondMatrix, rowFirst, columnFirst, rowSecond, columnSecond);

        // Function to multiply two matrices.
        multiplyMatrices(firstMatrix, secondMatrix, mult, rowFirst, columnFirst, rowSecond, columnSecond);

        // Function to display resultant matrix after multiplication.
        display(mult, rowFirst, columnSecond);

    return 0;
}

void enterData(int firstMatrix[][10], int secondMatrix[][10], int rowFirst, int columnFirst, int rowSecond, int columnSecond)
{
    int i, j;
    printf("\nEnter elements of matrix 1:\n");
    for(i = 0; i < rowFirst; ++i)
    {
        for(j = 0; j < columnFirst; ++j)
        {
            printf("Enter elements a%d%d: ", i + 1, j + 1);
            scanf("%d", &firstMatrix[i][j]);
        }
    }

    printf("\nEnter elements of matrix 2:\n");
    for(i = 0; i < rowSecond; ++i)
    {
        for(j = 0; j < columnSecond; ++j)
        {
            printf("Enter elements b%d%d: ", i + 1, j + 1);
            scanf("%d", &secondMatrix[i][j]);
        }
    }
}

void multiplyMatrices(int firstMatrix[][10], int secondMatrix[][10], int mult[][10], int rowFirst, int columnFirst, int rowSecond, int columnSecond)
{
    int i, j, k;

    // Initializing elements of matrix mult to 0.
    for(i = 0; i < rowFirst; ++i)
    {
        for(j = 0; j < columnSecond; ++j)
        {
            mult[i][j] = 0;
        }
    }

    // Multiplying matrix firstMatrix and secondMatrix and storing in array mult.
    for(i = 0; i < rowFirst; ++i)
    {
        for(j = 0; j < columnSecond; ++j)
        {
            for(k=0; k

输出

Enter rows and column for first matrix: 3
2
Enter rows and column for second matrix: 3
2
Error! column of first matrix not equal to row of second.

Enter rows and column for first matrix: 2
3
Enter rows and column for second matrix: 3
2

Enter elements of matrix 1:
Enter elements a11: 3
Enter elements a12: -2
Enter elements a13: 5
Enter elements a21: 3
Enter elements a22: 0
Enter elements a23: 4

Enter elements of matrix 2:
Enter elements b11: 2
Enter elements b12: 3
Enter elements b21: -9
Enter elements b22: 0
Enter elements b31: 0
Enter elements b32: 4

Output Matrix:
24  29

6  25

在此示例中，您将学习将两个矩阵相乘并使用用户定义的函数显示。

示例：通过将矩阵传递给函数来相乘