//Transpose matrix
public MatrixDouble transpose()
{
MatrixDouble res = new MatrixDouble(this._m, this._n);
for (int i = 0; i < this._m; i++)
{
for (int j = 0; j < this._n; j++)
{
res._data[i][j] = this._data[j][i];
}
}
return(res);
}
//Identity matrix
public MatrixDouble identity(int n)
{
MatrixDouble res = new MatrixDouble(n, n);
for (int i = 0; i < n; i++)
{
for (int j = 0; j < n; j++)
{
res._data[i][j] = 1;
}
}
return(res);
}
//Addition
public MatrixDouble addition(MatrixDouble mat)
{
if (this._m != mat._m || this._n != mat._n)
{
throw new Exception("Illegal matrix dimensions");
}
MatrixDouble res = new MatrixDouble(this._m, this._n);
for (int i = 0; i < this._m; i++)
{
for (int j = 0; j < this._n; j++)
{
res._data[i][j] = this._data[i][j] + mat._data[i][j];
}
}
return(res);
}
//To create a random matrix
public MatrixDouble randomMatrix(int m, int n, int min, int max)
{
if (min >= max)
{
throw new Exception("Incompatible values");
}
Random rnd = new Random();
MatrixDouble res = new MatrixDouble(m, n);
for (int i = 0; i < m; i++)
{
for (int j = 0; j < n; j++)
{
res._data[i][j] = min + (max - min) * rnd.NextDouble();
}
}
return(res);
}
//Multiplication
public MatrixDouble multiplication(MatrixDouble mat)
{
if (this._n != mat._m)
{
throw new Exception("Invalide matrix dimensions");
}
MatrixDouble res = new MatrixDouble(this._m, mat._n);
for (int i = 0; i < this._m; i++)
{
for (int j = 0; j < mat._n; j++)
{
res._data[i][j] = 0;
for (int k = 0; k < this._n; k++)
{
res._data[i][j] += this._data[i][k] * mat._data[k][j];
}
}
}
return(res);
}
static void Main(string[] args)
{
//Crible d'Eratosthène
/*Console.WriteLine("Veuillez entre votre nombre n.");
* String inputString = Console.ReadLine();
* int inputInteger;
* bool success = int.TryParse(inputString, out inputInteger);
* if (success)
* {
* Console.WriteLine("Les nombres premiers compris entre 0 et n = " + inputInteger + " sont : ");
* CribleEratosthene.Program.display(CribleEratosthene.Program.cribleEratosthene(inputInteger));
* }
* else
* {
* Console.WriteLine("Un problème est survenue, vous devez entre Veuillez entre votre nombre n.");
*
* }
* Console.ReadLine();*/
//Matrix
double[] d1 = { 1, 2 };
double[] d2 = { 4, 5 };
double[] d3 = { 3, 9 };
double[][] data =
{
d1,
d2
};
MatrixDouble A = new MatrixDouble(data);
A.displayMatrix();
Console.ReadLine();
}
//Constructor by copy
public MatrixDouble(MatrixDouble mat)
{
this._m = mat._m;
this._n = mat._n;
this._data = mat._data;
}