inlib::randf::gauss Class Reference

List of all members.

Public Member Functions
	gauss (float a_mean=0, float a_std_dev=1)
	gauss (const gauss &a_from)
gauss &	operator= (const gauss &a_from)
float	shoot () const

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Detailed Description

Definition at line 23 of file randf.

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Constructor & Destructor Documentation

inlib::randf::gauss::gauss	(	float	a_mean = 0,
		float	a_std_dev = 1
	)		[inline]

Definition at line 25 of file randf.

  :m_mean(a_mean),m_std_dev(a_std_dev){}

inlib::randf::gauss::gauss

(

const gauss &

a_from

)

[inline]

Definition at line 28 of file randf.

  :m_mean(a_from.m_mean),m_std_dev(a_from.m_std_dev){}

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Member Function Documentation

gauss& inlib::randf::gauss::operator=

(

const gauss &

a_from

)

[inline]

Definition at line 30 of file randf.

                                        {
    m_mean = a_from.m_mean;
    m_std_dev = a_from.m_std_dev;
    return *this;
  }

float inlib::randf::gauss::shoot

(

)

const [inline]

Definition at line 36 of file randf.

                      {
    //  Shoot random numbers according a 
    // gaussian distribution of mean 0 and sigma 1.
    float v1,v2,r,fac;
    do {
      v1 = 2 * m_flat.shoot() - 1;
      v2 = 2 * m_flat.shoot() - 1;
      r = v1*v1 + v2*v2;
    } while ( r > 1 );
    fac = fsqrt(-2*flog(r)/r);
    return (v2 * fac) * m_std_dev + m_mean;
  }

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The documentation for this class was generated from the following file:

• /Users/barrand/private/dev/softinex/old/inexlib-1.2/inlib/inlib/randf