//likely lossy conversion, truncation of decimals
public SquareIntegerMatrix GetInverse()
{
int det = Determinant();
if (det == 0)
{
throw new MatrixTypeMismatchException(); //matrix is not invertible
}
SquareIntegerMatrix ret = new SquareIntegerMatrix(Size);
if (Size == 2)
{
for (int i = 0; i < Size; i++)
{
for (int j = 0; j < Size; j++)
{
ret.Replace(i, j, Get(i, j) / det);
}
}
}
else
{
//size > 2 TODO:
}
return(ret);
}
//TODO: classify multiplications to have the products be as explicit as possible.
//im sure theres a better way to do this lol
public SquareIntegerMatrix Multiply(SquareIntegerMatrix other)
{
IntegerMatrix product = Multiply(other as IntegerMatrix);
SquareIntegerMatrix ret = new SquareIntegerMatrix(other.RowSize);
for (int i = 0; i < RowSize; i++)
{
for (int j = 0; j < RowSize; j++)
{
ret.Replace(i, j, product.Get(i, j));
}
}
return(ret);
}
public SquareIntegerMatrix TrySquareConversion()
{
if (IsSquare)
{
SquareIntegerMatrix ret = new SquareIntegerMatrix(RowSize);
for (int i = 0; i < RowSize; i++)
{
for (int j = 0; j < RowSize; j++)
{
ret.Replace(i, j, this.Get(i, j));
}
}
return(ret);
}
else
{
throw new MatrixTypeMismatchException();
}
}