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-
- /*
- Copyright (C) 1988 Free Software Foundation
- written by Dirk Grunwald (grunwald@cs.uiuc.edu)
-
- This file is part of the GNU C++ Library. This library is free
- software; you can redistribute it and/or modify it under the terms of
- the GNU Library General Public License as published by the Free
- Software Foundation; either version 2 of the License, or (at your
- option) any later version. This library 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 Library General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free Software
- Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- #ifdef __GNUG__
- #pragma implementation
- #endif
- #include <builtin.h>
- #include <xrandom.h>
- #include <xhypgeom.h>
-
- double HyperGeometric::operator()()
- {
- double d = (pGenerator -> asDouble() > pP) ? (1.0 - pP) : (pP);
- return(-pMean * log(pGenerator -> asDouble()) / (2.0 * d) );
- }
-
-