1: #include<stdio.h> 2: #include<conio.h>3: void main()
4: {5: char line[80];
6: int i,l,k;
7: clrscr();8: printf("Enter the line\n");
9: for(i=0;i<80;i++)
10: {11: scanf("%c",&line[i]);
12: if(line[i]=='\n')
13: break;
14: } 15: l=i;16: printf("Enter the num for coding: ");
17: scanf("%d",&k);
18: printf("\nCoded text is:\n");
19: for(i=0;i<l;i++)
20: printf("%4d",line[i]+k);
21: getch(); 22: }
1: #include<stdio.h> 2: #include<conio.h>3: void main()
4: {5: char line[80];
6: int i,l;
7: printf("Enter the Line:\n");
8: for(i=0;i<80;i++)
9: {10: scanf("%c",&line[i]);
11: if(line[i]=='\n')
12: break;
13: } 14: l=i;15: printf("the characters in the line are\n");
16: for(i=0;i<l;i++)
17: printf("%3d %c\n",i,line[i]);
18: getch(); 19: } 1: #include<stdio.h>
2: #include<conio.h>
3: #include<stdlib.h>
4: void getproduct(int,int,int,float[10][10],float[10][10]);
5: void main()
6: {
7: int i,j,k,m1,n1,m2,n2;
8: float x[10][10],y[10][10];
9: printf("\nEnter the rows of matrix X: ");
10: scanf("%d",&m1);
11: printf("\nEnter the clomuns of matrix X: ");
12: scanf("%d",&n1);
13: printf("\nEnter the rows of matrix Y: ");
14: scanf("%d",&m2);
15: printf("\nEnter the columns of matrix y: ");
16: scanf("%d",&n2);
17: if(n1==m2)
18: k=n1;
19: else
20: {
21: printf("\nMultiplication of X and Y is not possible:");
22: getch();
23: exit(0);
24: }
25: printf("\nEnter the elements of first matrix:\n");
26: for(i=0;i<m1;i++)
27: for(j=0;j<n1;j++)
28: scanf("%f",&x[i][j]);
29: printf("\nEnter the elements of second matrix:\n");
30: for(i=0;i<m2;i++)
31: for(j=0;j<n2;j++)
32: scanf("%f",&y[i][j]);
33: getproduct(m1,k,n2,x,y);
34: getch();
35: }
36: void getproduct(int m1,int k,int n2,float x[10][10],float y[10][10])
37: {
38: int u,v,i;
39: float z[10][10];
40: for(u=0;u<m1;u++)
41: for(v=0;v<n2;v++)
42: {
43: z[u][v]=0.0;
44: for(i=0;i<k;i++)
45: z[u][v]+=x[u][i]*y[i][v];
46: }
47: printf("MATRIX Z=X*Y\n\n");
48: for(u=0;u<m1;u++)
49: {
50: for(v=0;v<n2;v++)
51: {
52: printf("%8.3f",z[u][v]);
53: }
54: printf("\n");
55: }
56: getch();
57: }
1: #include<stdio.h> 2: #include<conio.h>3: void displaymatrix(int nr,int nc,int x[10][10])
4: {5: int i,j;
6: printf("The matrix is given below:\n\n");
7: for(i=0;i<nr;i++)
8: {9: for(j=0;j<nc;j++)
10: {11: printf("%d ",x[i][j]);
12: }13: printf("\n");
14: } 15: }16: void main()
17: {18: int i,j,nr,nc,x[10][10];
19: printf("\nNo of rows:");
20: scanf("%d",&nr);
21: printf("\nNo of columns:");
22: scanf("%d",&nc);
23: for(i=0;i<nr;i++)
24: for(j=0;j<nc;j++)
25: x[i][j]=2*i+3*j; 26: displaymatrix(nr,nc,x); 27: getch(); 28: } 1: #include<stdio.h> 2: #include<conio.h> 3: #include<stdlib.h>4: void main()
5: {6: int x[10][10],y[10][10],xr,xc,yr,yc,i,j,equal=1;
7: printf("Matrix X:\n\n");
8: printf("Number of rows: ");
9: scanf("%d",&xr);
10: printf("\nNumber of clomuns: ");
11: scanf("%d",&xc);
12: for(i=0;i<xr;i++)
13: {14: for(j=0;j<xc;j++)
15: {16: printf("\nEnter the element x[%d][%d]",i,j);
17: scanf("%d",&x[i][j]);
18: } 19: }20: printf("Matrix Y\n\n");
21: printf("Number of rows: ");
22: scanf("%d",&yr);
23: printf("\nNumber of columns: ");
24: scanf("%d",&yc);
25: for(i=0;i<yr;i++)
26: {27: for(j=0;j<yc;j++)
28: {29: printf("\nEnter the element y[%d][%d]",i,j);
30: scanf("%d",&y[i][j]);
31: } 32: }33: if(xr!=yr||xc!=yc)
34: {35: printf("\nMatrices cant be campare No of rows or columns are diffrent:\n");
36: getch(); 37: exit(1); 38: }39: else
40: {41: for(i=0;i<xr;i++)
42: for(j=0;j<xc;j++)
43: if(x[i][j]!=y[i][j])
44: { 45: equal=0;46: break;
47: }48: if(equal)
49: printf("\nMatrices are identical");
50: else
51: printf("\nmatrice are not identical");
52: } 53: getch(); 54: }
1: #include<stdio.h>
2: #include<conio.h>
3: void main()
4: {
5: int i,j,sum=0;
6: int x[4][4]={
7: {2,4,6,8},
8: {3,5,7,9},
9: {4,2,6,8},
10: {1,3,5,7},
11: };
12: for(i=0;i<4;i++)
13: {
14: for(j=0;j<4;j++)
15: {
16: if(i==j)
17: sum+=x[i][j];
18: printf("%5d",x[i][j]);
19: }
20: printf("\n");
21: }
22: printf("the trace of the matrix is: %d\n",sum);
23: getch();
24: }
1: #include<stdio.h> 2: #include<conio.h>3: void main()
4: {5: int i,j,r,c;
6: int x[10][10];
7: printf("Enter the number of rows: ");
8: scanf("%d",&r);
9: printf("Enter the number of columns: ");
10: scanf("%d",&c);
11: for(i=0;i<r;i++)
12: {13: for(j=0;j<c;j++)
14: { 15: x[i][j]=2*i+3*j; 16: } 17: }18: printf("The matrix is given below\n\n");
19: for(i=0;i<r;i++)
20: {21: for(j=0;j<c;j++)
22: {23: printf("%5d",x[i][j]);
24: }25: printf("\n");
26: } 27: getch(); 28: }