In this article, you will find a fast generator for Random Variable, namely normal and exponential distributions. It is based on George Marsaglia's and Wai Wan Tsang's work.
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#if !defined(AFX_PGLGRAPHDLG_H__38C26E0A_DB09_405D_BB35_1CB762916549__INCLUDED_)
#define AFX_PGLGRAPHDLG_H__38C26E0A_DB09_405D_BB35_1CB762916549__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
// PGLGraphDlg.h : header file
//
#include "PGLGraph.h"
#include "PGLView2D.h"
#include "PGLMouse.h" // Added by ClassView
/////////////////////////////////////////////////////////////////////////////
// CPGLGraphDlg dialog
class PGL_EXT_CLASS CPGLGraphDlg : public CDialog
{
// Construction
public:
CPGLGraphDlg(CWnd* pParent = NULL, CPGLGraph* _graph = NULL); // standard constructor
~CPGLGraphDlg();
//! return graph pointer
CPGLGraph* GetGraph()
{ return m_pGraph;};
//! Set graphGL.
void SetGraph(CPGLGraph* _graph)
{ ASSERT_VALID(_graph); m_pGraph=_graph;};
// Dialog Data
//{{AFX_DATA(CPGLGraphDlg)
enum { IDD = IDD_PGL_DIALOG_GRAPH };
// NOTE: the ClassWizard will add data members here
//}}AFX_DATA
// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CPGLGraphDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
protected:
// Implementation
void ExportToVectors();
void Serialize(CArchive &archive);
// Generated message map functions
//{{AFX_MSG(CPGLGraphDlg)
afx_msg void OnDestroy();
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
protected:
CPGLMouse m_mouse;
CPGLGraph* m_pGraph;
int m_iMouseMode;
HICON m_hIcon;
};
//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
#endif // !defined(AFX_PGLGRAPHDLG_H__38C26E0A_DB09_405D_BB35_1CB762916549__INCLUDED_)
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Jonathan de Halleux is Civil Engineer in Applied Mathematics. He finished his PhD in 2004 in the rainy country of Belgium. After 2 years in the Common Language Runtime (i.e. .net), he is now working at Microsoft Research on Pex (http://research.microsoft.com/pex).