110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
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/*
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* C program to read two matrices A(MxN) and B(MxN) and perform addition
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* OR subtraction of A and B. Also, find the trace of the resultant
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* matrix. Display the given matrices, their sum or differences and
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* the trace.
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*/
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#include <stdio.h>
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void trace(int arr[][10], int m, int n);
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void main()
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{
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int array1[10][10], array2[10][10], arraysum[10][10],
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arraydiff[10][10];
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int i, j, m, n, option;
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printf("Enter the order of the matrix array1 and array2 \n");
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scanf("%d %d", &m, &n);
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printf("Enter the elements of matrix array1 \n");
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for (i = 0; i < m; i++)
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{
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for (j = 0; j < n; j++)
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{
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scanf("%d", &array1[i][j]);
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}
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}
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printf("MATRIX array1 is \n");
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for (i = 0; i < m; i++)
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{
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for (j = 0; j < n; j++)
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{
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printf("%3d", array1[i][j]);
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}
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printf("\n");
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}
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printf("Enter the elements of matrix array2 \n");
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for (i = 0; i < m; i++)
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{
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for (j = 0; j < n; j++)
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{
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scanf("%d", &array2[i][j]);
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}
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}
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printf("MATRIX array2 is \n");
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for (i = 0; i < m; i++)
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{
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for (j = 0; j < n; j++)
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{
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printf("%3d", array2[i][j]);
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}
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printf("\n");
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}
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printf("Enter your option: 1 for Addition and 2 for Subtraction \n");
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scanf("%d", &option);
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switch (option)
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{
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case 1:
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for (i = 0; i < m; i++)
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{
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for (j = 0; j < n; j++)
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{
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arraysum[i][j] = array1[i][j] + array2[i][j];
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}
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}
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printf("Sum matrix is \n");
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for (i = 0; i < m; i++)
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{
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for (j = 0; j < n; j++)
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{
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printf("%3d", arraysum[i][j]) ;
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}
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printf("\n");
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}
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trace (arraysum, m, n);
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break;
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case 2:
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for (i = 0; i < m; i++)
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{
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for (j = 0; j < n; j++)
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{
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arraydiff[i][j] = array1[i][j] - array2[i][j];
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}
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}
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printf("Difference matrix is \n");
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for (i = 0; i < m; i++)
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{
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for (j = 0; j < n; j++)
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{
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printf("%3d", arraydiff[i][j]) ;
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}
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printf("\n");
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}
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trace (arraydiff, m, n);
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break;
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}
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}
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/* Function to find the trace of a given matrix and print it */
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void trace (int arr[][10], int m, int n)
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{
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int i, j, trace = 0;
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for (i = 0; i < m; i++)
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{
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for (j = 0; j < n; j++)
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{
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if (i == j)
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{
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trace = trace + arr[i][j];
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}
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}
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}
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printf("Trace of the resultant matrix is = %d\n", trace);
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}
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