public MaTran(MaTran t2)
{
this.m = t2.m;
this.n = t2.n;
this.a = new int[m, n];
for (int i = 0; i < m; ++i)
{
for (int j = 0; j < n; ++j)
{
this.a[i, j] = t2.a[i, j];
}
}
}
public MaTran Hieu(MaTran t2)
{
if (this.m == t2.m && this.n == t2.n)
{
MaTran t = new MaTran(this.m, this.n);
for (int i = 0; i < t.m; ++i)
{
for (int j = 0; j < t.n; ++j)
{
t.a[i, j] = this.a[i, j] - t2.a[i, j];
}
}
return(t);
}
else
{
return(null);
}
}