//hashCode
public DualMatrix(DualNumber[,] entries)
{
if (entries == null)
{
throw new ArgumentNullException();
}
for (int i = 0; i < entries.GetLength(0); i++)
{
for (int j = 0; j < entries.GetLength(1); j++)
{
if (entries[i, j] == null)
{
throw new ArgumentNullException();
}
}
}
this.entries = (DualNumber[,])entries.Clone();
}
/*************************************************************************
Copyright (c) 2005-2007, Sergey Bochkanov (ALGLIB project).
>>> SOURCE LICENSE >>>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation (www.fsf.org); either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
A copy of the GNU General Public License is available at
http://www.fsf.org/licensing/licenses
>>> END OF LICENSE >>>
*************************************************************************/
private static DualNumber spdmatrixdet(DualNumber[,] a, int n, bool isupper)
{
DualNumber result = 0;
a = (DualNumber[,])a.Clone();
if (!spdmatrixcholesky(ref a, n, isupper))
{
result = -1;
}
else
{
result = spdmatrixcholeskydet(ref a, n);
}
return result;
}