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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// FileGfxInterface.h: interface for the CFileGfxInterface class.
//
//////////////////////////////////////////////////////////////////////
#if !defined(AFX_FILEGFXINTERFACE_H__1610038E_5F25_4B52_BD4E_6A7F372002B0__INCLUDED_)
#define AFX_FILEGFXINTERFACE_H__1610038E_5F25_4B52_BD4E_6A7F372002B0__INCLUDED_
#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000
#include "GfxInterface.h"
namespace gfxinterface
{
/* \brief
\ingroup IGfxGroup
Intermidate class for Graphic format based on files (such as eps, or svg)
*/
class CFileGfxInterface : public CGfxInterface
{
public:
CFileGfxInterface(const char* sFileName = "untitled");
virtual ~CFileGfxInterface();
virtual bool Open(const char* filename = NULL);
virtual void Close();
//! Sets the creator name in file header
void SetCreator(const char* str);
//! Sets image title
void SetTitle(const char* str);
//! Sets creation date
void SetCreationDate(const char* str);
protected:
std::string m_sFileName;
std::string m_sCreator;
std::string m_sTitle;
std::string m_sCreationDate;
std::ofstream m_file;
};
}
#endif // !defined(AFX_FILEGFXINTERFACE_H__1610038E_5F25_4B52_BD4E_6A7F372002B0__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).