public static MaTran operator -(MaTran A, MaTran B)
{
var C = new MaTran(A.M, A.N);
C = A + -B;
return(C);
}
public void BienDoiTrenHang(int hangA, int hangB, XuLyHaiHang xuLyHang)
{
MaTran B = this.Copy();
for (int i = 0; i < B.N; i++)
{
double a = B[hangA, i];
double b = B[hangB, i];
xuLyHang(ref a, ref b);
B[hangA, i] = a;
B[hangB, i] = b;
}
if (MTGhep != null)
{
for (int i = 0; i < B.MTGhep.N; i++)
{
double a = B.MTGhep[hangA, i];
double b = B.MTGhep[hangB, i];
xuLyHang(ref a, ref b);
B.MTGhep[hangA, i] = a;
B.MTGhep[hangB, i] = b;
}
}
this.Copy(B);
}
public void Copy(MaTran B)
{
MaTran A = B.Copy();
MT = A.MT;
MTGhep = A.MTGhep;
}
static void Main(string[] args)
{
var a = new MaTran(@"MaTran\a.txt");
var b = new MaTran(@"MaTran\b.txt");
Console.WriteLine((a * b).ToString());
Console.ReadKey();
}
public static MaTran DonVi(int length)
{
var mtDonVi = new MaTran(length, length);
for (int i = 0; i < length; i++)
{
mtDonVi[i, i] = 1;
}
return(mtDonVi);
}
public MaTran(MaTran B)
{
newMaTran(B.M, B.N);
for (int i = 0; i < M; i++)
{
for (int j = 0; j < N; j++)
{
this[i, j] = B[i, j];
}
}
if (MTGhep != null)
{
MTGhep = B.MTGhep.Copy();
}
}
public MaTran Copy()
{
var a = new MaTran(M, N);
for (int i = 0; i < M; i++)
{
for (int j = 0; j < N; j++)
{
a[i, j] = this[i, j];
}
}
if (MTGhep != null)
{
a.MTGhep = MTGhep.Copy();
}
return(a);
}
public MaTran CongVoiMaTran(MaTran B)
{
if (M == B.M && N == B.N)
{
MaTran C = new MaTran(M, N);
for (int i = 0; i < M; i++)
{
for (int j = 0; j < N; j++)
{
C[i, j] = this[i, j] + B[i, j];
}
}
return(C);
}
else
{
throw new Exception("Không cộng được");
}
}
public MaTran NhanVoiMaTran(MaTran B)
{
if (N == B.M)
{
var C = new MaTran(M, B.N);
for (int i = 0; i < C.M; i++)
{
for (int j = 0; j < C.N; j++)
{
for (int k = 0; k < N; k++)
{
C[i, j] += this[i, k] * B[k, j];
}
}
}
return(C);
}
else
{
throw new Exception("không nhân được");
}
}
