Question

Write a menu driven program to perform an operation multiplication, substraction, addition,on 2d matrix entered through user as per their choice

Answer 1

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Points:4

void main()
{
int I,j,r1,r2,c1,c2,a[20[20],b[20[20],c[20][20],k,s,ch;
char con;
do
{
clrscr();
printf(" Enter 1 for Matrix addition\n 2 for Matrix multiplication\n 3 for Transpose of a matrix\n 4 for Sum of diagonals of a matrix");
printf("Enter your choice");
scanf("%d",&ch)
switch(ch)
{
case 1: printf("Enter the order of the first matrix");
scanf("%d%d",&r1,&c1);
printf("Enter the order of the second matrix");
scanf("%d%d",&r2,&c2);
if(r1==r2&&c1==c2)
{
printf("Enter the elements in to the first matrix");
for(i=0;ifor(j=0;jscanf("%d",&a[i][j]);
printf("Enter the elements in to the second matrix");
for(i=0;ifor(j=0;jscanf("%d",&b[i][j]);
printf("Entered first matrix");
for(i=0;i{
for(j=0;j{
printf("%d\t",a[i][j]);
}
printf("\n");
}
printf("Entered second matrix");
for(i=0;i{
for(j=0;j{
printf("%d\t",b[i][j]);
}
printf("\n");
}
for(i=0;i{
for(j=0;j{
c[i][j]=a[i][j]+b[i][j];
}
}
printf("Sum:\n");
for(i=0;i{
for(j=0;j{
printf("%d\t",c[i][j]);
}
printf("\n");
}
}
else
printf("Addition is not possible");
break;
case 2: printf("Enter the order of the first matrix");
scanf("%d%d",&r1,&c1);
printf("Enter the order of the second matrix");
scanf("%d%d",&r2,&c2);
if(c1==r2)
{
printf("Enter the elements in to the first matrix");
for(i=0;ifor(j=0;jscanf("%d",&a[i][j]);
printf("Enter the elements in to the second matrix");
for(i=0;ifor(j=0;jscanf("%d",&b[i][j]);
printf("Entered first matrix");
for(i=0;i{
for(j=0;j{
printf("%d\t",a[i][j]);
}
printf("\n");
}
printf("Entered second matrix");
for(i=0;i{
for(j=0;j{
printf("%d\t",b[i][j]);
}
printf("\n");
}
printf("Product:\n");
for(i=0;i{
for(j=0;j{
c[i][j]==0;
for(k=0;k{
c[i][j]= c[i][j]+a[i][k]*b[k][j];
}
printf("%d\t",c[i][j]);
}
printf("\n");
}
}
else
printf("Multiplication is not possible");
break;
case 3: printf("Enter the order of the matrix");
scanf("%d%d",&r1,&c1);
printf("Enter the elements in to the matrix");
for(i=0;ifor(j=0;jscanf("%d",&a[i][j]);
printf("Entered matrix");
for(i=0;i{
for(j=0;j{
printf("%d\t",a[i][j]);
}
printf("\n");
}
printf("Transpose:\n");
for(i=0;i{
for(j=0;j{
printf("%d\t",a[i][j]);
}
printf("\n");
}
break;
case 4: printf("Enter the order of the matrix");
scanf("%d%d",&r1,&c1);
if(r1==c1)
{
printf("Enter the elements in to the matrix");
for(i=0;ifor(j=0;jscanf("%d",&a[i][j]);
printf("Entered matrix");
for(i=0;i{
for(j=0;j{
printf("%d\t",a[i][j]);
}
printf("\n");
}
printf("Sum=%d",s);
}
else
printf("Not a square matrix");
break;
default: printf("Inavalid choice");
}
printf("Do you want to continue(y/n)";
scanf("%c",&con);
}
while(con=='y'||con=='Y');
getch();
}