rand.h

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/***********************************************
 * File : rand.hh
 * Prog : Fonctions de tirage au sort
 ***********************************************/
 

double ran1();
double GaussRand( double mean = 0., double stdev = 1. );
double OwnRand( double P( double x ), double st=0., 
                double mi=-1.e5, double ma=1.e5 );
void randOrder( int *list, int n );

float   EnergyFunc( float x );
inline float    EnergyFunc( float x, float m, float s )
{ return( EnergyFunc((x-m)/s) ); }

float angle( float x, float y );
 
void setRandSeed( long x );

template<class T> T sqr( T t ) { return( t * t ); }