/// <summary>
/// Calculates the sub <see cref="IMatrix" /> of the current <see cref="IMatrix" /> by removing the specified column
/// and row.
/// </summary>
/// <param name="matrix">The <see cref="ISquareMatrix" />.</param>
/// <param name="row">The row that should be removed.</param>
/// <param name="column">The column that should be removed.</param>
/// <returns>The calculated sub <see cref="ISquareMatrix" />.</returns>
public static ISquareMatrix GetSubMatrix(this ISquareMatrix matrix, uint row, uint column)
{
ISquareMatrix resultMatrix;
switch (matrix.Dimension)
{
case 2:
resultMatrix = new Matrix1x1();
break;
case 3:
resultMatrix = new Matrix2x2();
break;
case 4:
resultMatrix = new Matrix3x3();
break;
default:
throw new InvalidOperationException("Cannot build sub matrix of " + nameof(matrix) +
" as there is no lower dimension defined for it.");
}
uint y = 0;
for (uint cy = 0; cy < matrix.RowCount; cy++)
{
if (cy != row)
{
uint x = 0;
for (uint cx = 0; cx < matrix.ColumnCount; ++cx)
{
if (cx != column)
{
resultMatrix[y, x] = matrix[cy, cx];
x++;
}
}
y++;
}
}
return(resultMatrix);
}
public bool Equals(Matrix1x1 other)
{
return(this == other);
}