//
//Please find details of the method from
//
//	Q. Zhang, A. Zhou and Y. Jin, "RM-MEDA: A Regularity Model Based Multiobjective Estimation of Distribution Algorithm", IEEE Trans. Evolutionary Computation, Vol. 12, no. 1, pp41-63, 2008.
//
//The source codes are free for reserach work. If you have any problem with the source codes, please contact with 
//	Qingfu Zhang, 
//		Department of Computing and Electronic Systems,
//		University of Essex,
//		Colchester, CO4 3SQ, UK
//		http://cswww.essex.ac.uk/staff/zhang
//		Email: qzhang@essex.ac.uk
//    Aimin Zhou
//		Department of Computing and Electronic Systems,
//		University of Essex,
//		Colchester, CO4 3SQ, UK
//		http://privatewww.essex.ac.uk/~azhou/
//		Email: azhou@essex.ac.uk or amzhou@gmail.com 
//Programmer:		
//		Aimin Zhou
//Last Update:
//		Feb. 21, 2008
//
//Random.h :random generator
//

#ifndef	AZ_RANDOM_H
#define	AZ_RANDOM_H

//!\brief	az namespace, the top namespace
namespace az
{

//!\brief rnd namespace for random generator
namespace rnd
{
	//!\brief	initialize the random seed
	//!\param	seeds seeds
	//!\return	void
	void seed( long seeds = 0 );

	//!\brief	create a real random in (0.0,1.0)
	//!\return	random number
	double rand();

	//!\brief	create a real random in (low,up) for real number and [low, up) for integer number
	//!\param	low lower range
	//!\param	up upper range
	//!\return	random number
	double rand(double low, double up);

	//!\brief	create a real random in (low,up) for real number and [low, up) for integer number
	//!\param	low lower range
	//!\param	up upper range
	//!\return	random number
	int rand(int low, int up);

	//!\brief	create a real random in (low,up) for real number and [low, up) for integer number
	//!\param	low lower range
	//!\param	up upper range
	//!\return	random number
	unsigned int rand(unsigned int low, unsigned int up);

	//!\brief	create a real Gaussian random with distribution (0.0,1.0)
	//!\return	random number
	double gaussian();

	//!\brief	create a real number with Triangular distribution
	//!\param	min lower limit
	//!\param	max upper limit
	//!\param	mode most likely value 
	//!\return	random number
	double triangular(double min, double max, double mode);
} //namespace rnd

} //namespace az

#endif //AZ_RANDOM_H