/// <summary>
/// <para>�w�肳�ꂽ1�����z���C�w�肳�ꂽ�s��`���ŃR�s�[����D</para>
/// <para>�z��̃T�C�Y�ƁurowSize * columnSize�v�͈�v���Ȃ���Ȃ�Ȃ��D</para>
/// </summary>
/// <param name="body">�R�s�[�����z��</param>
/// <param name="rowSize">�s��</param>
/// <param name="columnSize">��</param>
/// <returns>�R�s�[��̎��g�ւ̎Q��</returns>
internal virtual MyDoubleMatrix CopyFrom(Double[] body, int rowSize, int columnSize)
{
// ���͂̌���
System.Diagnostics.Debug.Assert(body.Length == rowSize * columnSize);
if (body.Length != rowSize * columnSize)
{
return this;
}
// �o�b�t�@�m��
if (this._rsize == rowSize && this._csize == columnSize)
{
// ������Ȃ�
}
else if (this._body != null && this._body.Length == rowSize * columnSize)
{
this._rsize = rowSize;
this._csize = columnSize;
}
else
{
Resize(rowSize, columnSize);
}
// �R�s�[
body.CopyTo(this._body, 0);
return this;
}
//вычисляет производную
private Double dF(Double[] mX, int i)
{
Double[] newX = new Double[mX.Length];
mX.CopyTo(newX, 0);
newX[i] = newX[i] + eps / 10000;
return (F(newX) - F(mX)) / (eps / 10000);
}
