public static MyMatrix Transpose(MyMatrix a)
{
int rows = a.RowCount;
int cols = a.ColCount;
MyMatrix result = new MyMatrix(cols, rows);
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < cols; j++)
{
result[j, i] = a[i, j];
}
}
return(result);
}
public static MyMatrix Negate(MyMatrix a)
{
int rows = a.RowCount;
int cols = a.ColCount;
MyMatrix result = new MyMatrix(rows, cols);
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < cols; j++)
{
result[i, j] = -a[i, j];
}
}
return(result);
}
public static MyMatrix Substract(MyMatrix a, MyMatrix b)
{
if (a.RowCount != b.RowCount || a.ColCount != b.ColCount)
{
throw new InvalidOperationException();
}
int rows = a.RowCount;
int cols = a.ColCount;
MyMatrix result = new MyMatrix(rows, cols);
for (int i = 0; i < rows; i++)
{
for (int j = 0; j < cols; j++)
{
result[i, j] = a[i, j] - b[i, j];
}
}
return(result);
}
public static MyMatrix Multiply(MyMatrix a, double[] b)
{
if (a.ColCount != b.Length)
{
throw new InvalidOperationException();
}
int rows = a.RowCount;
MyMatrix result = new MyMatrix(rows, 1);
for (int i = 0; i < rows; i++)
{
double temp = 0;
for (int j = 0; j < b.Length; j++)
{
temp += a[i, j] * b[j];
}
result[i, 0] = temp;
}
return(result);
}
public void Transpose()
{
MyMatrix tranpose = Transpose(this);
this.elements = tranpose.elements;
}