C program to transpose/inverse a matrix?

  #include <stdio.h>
#include <conio.h>

main()
{
int i, j, mat[3][3], transposed_mat[3][3];
printf("n Enter the 9 elements of the matrix ");
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
{
scanf("%d", &mat[i][j]);
}
}
printf("n The elements of the matrix are ");
for(i=0;i<3;i++)
{
printf("n");
for(j=0;j<3;j++)
printf("t %d", mat[i][j]);
}
for(i=0;i<3;i++)
{
for(j=0;j<3;j++)
transposed_mat[i][j] = mat[j][i];
}
printf("n The elements of the transposed matrix are ");
for(i=0;i<3;i++)
{
printf("n");
for(j=0;j<3;j++)
printf("t %d",transposed_mat[i][j]);
}
getch();
}