Here all the Matrix programs in c using array are available. This program will add two matrices, subtract two matrices, and multiply two matrices.

Addition of matrices in c

In this Matrix program in c using an array, we will add two matrices. First, we insert numbers in the matrix entered by the user in Matrix A and Matrix B using for loop. Now we take another matrix that contains the addition of corresponding elements of matrices using for loop.
#include <stdio.h>
int main()
{
    int C[3][3], A[3][3], B[3][3], i, j, ch;
    printf("n Matrix An");
    printf("n Enter the numbers you want to insert :");
    for (i = 0; i < 3; i++)
    {
        for (j = 0; j <3; j++)
        {
            printf("t");
            scanf("%d", &ch);
            A[i][j] = ch;
        }
    }
    printf("n Matrix A:n");

    for (i = 0; i < 3; i++)
    {
        for (j = 0; j <3; j++)
        {
            printf("%d", A[i][j]);
            printf("t");
        }
        printf("n");
    }
    printf("nn Matrix B");
    printf("n Enter the numbers you want to insert in the matrix B:n");
    for (i = 0; i < 3; i++)
    {
        for (j = 0; j <3; j++)
        {
            printf("t");
            scanf("%d", &ch);
            B[i][j] = ch;
        }
    }
    printf("n Matrix B:n");
    for (i = 0; i < 3; i++)
    {
        for (j = 0; j <3; j++)
        {
            printf("%d", B[i][j]);
            printf("t");
        }
        printf("n");
    }
    printf("n A+B=n");
    for (i = 0; i < 3; i++)
    {
        for (j = 0; j <3; j++)
        {
            C[i][j] = A[i][j] + B[i][j];
            printf("%d", C[i][j]);
            printf("t");
        }
        printf("n");
    }
    return 0;
}

Program to add Two Matrix in C


Approach for C program for addition of matrices:

  1. Take input of both the matrices from the user.
  2. Using Nested for loop, we add the corresponding elements of matrices. Run an outer loop from i=0 to number to rows & inner loop will run from j=0 to the number of columns. For this, we use the following statement:
    C[i][j]= A[i][j]+B[i][j];

Subtraction of two matrices in c

In this matrix program in c using an array, we will subtract two matrices. First, we insert numbers in the matrix entered by the user in Matrix A and Matrix B using for loop. Now we take another matrix that contains subtraction of corresponding elements of matrices using for loop.

#include <stdio.h>
int main()
{
    int C[3][3], A[3][3], B[3][3], i, j, ch;
    printf("n Matrix An");
    printf("n Enter the numbers you want to insert :");
    for (i = 0; i < 3; i++)
    {
        for (j = 0; j <3; j++)
        {
            printf("t");
            scanf("%d", &ch);
            A[i][j] = ch;
        }
    }
    printf("n Matrix A:n");

    for (i = 0; i < 3; i++)
    {
        for (j = 0; j <3; j++)
        {
            printf("%d", A[i][j]);
            printf("t");
        }
        printf("n");
    }
    printf("nn Matrix B");
    printf("n Enter the numbers you want to insert in the matrix B:n");
    for (i = 0; i < 3; i++)
    {
        for (j = 0; j <3; j++)
        {
            printf("t");
            scanf("%d", &ch);
            B[i][j] = ch;
        }
    }
    printf("n Matrix B:n");
    for (i = 0; i < 3; i++)
    {
        for (j = 0; j <3; j++)
        {
            printf("%d", B[i][j]);
            printf("t");
        }
        printf("n");
    }
    printf("n A+B=n");
    for (i = 0; i < 3; i++)
    {
        for (j = 0; j <3; j++)
        {
            C[i][j] = A[i][j] - B[i][j];
            printf("%d", C[i][j]);
            printf("t");
        }
        printf("n");
    }
    return 0;
}

Approach for C program for subtraction of matrices:

  1. Using Nested for loop, we insert the matrices element.
  2.  We subtract the corresponding elements of matrices.
  3. Run two loops, i ->0 to n and j->0 to n.
  4. Use C[i][j]= A[i][j]-B[i][j]; to perform subtraction of corresponding elements.

Matrix program in c using array

Matrix: A matrix is an ordered array of numbers. We can only perform arithmetic operations like addition, subtraction, and multiplication of matrices in a square matrix. Square matrices are those which have the same number of rows and columns.

Following is the example of the square matrix: –
Matrix A
A[0][0] A[0][1] A[0][2] A[1][0] A[1][1] A[1][2] A[2][0] A[2][1] A[2][2]
We use a nested for loop to make a Matrix program in c using an array.

Questions and Answers

How do you declare a 2d array?
int A[r];
where r is the number of rows and c is the number of columns

What is a two-dimensional array?
A two-dimensional array is a matrix with several rows and columns.

What is a square matrix?
 Square matrices are those which have the same number of rows and columns.

C-Programming, for-loop, Matrix-Program