XeMath Class Reference

Base class for math operations. More...

#include <XeMath.h>

Inheritance diagram for XeMath:

List of all members.

Public Member Functions
	XeMath ()
	Void constructor for ROOT.
	~XeMath ()
	Destructor.
Static Public Member Functions
static double	computePolynomial (double x, int n, double *coef)
	Compute polynomail in a efficient way.
static bool	equalizeVector (vector< double > &v)
	equalize a vector, set all its value equal, conserving the sum
static bool	equalizeVector (double *v, int n)
	equalize a vector, set all its value equal, conserving the sum
static int	indexInterval (double v, double vMin, double vMax, int nInter, bool log=false)
	Return the index of value in a interval.
static bool	normalizeVector (vector< double > &vin, vector< double > &vout)
	normalize a vector so that its sum is 1.
static bool	normalizeVector (vector< double > &v)
	normalize a vector so that its sum is 1.
static bool	normalizeVector (double *vin, int n, double *vout=NULL)
	normalize a vector so that its sum is 1.
static bool	printVector (vector< int > &v, string header="")
	print content of a vector of int with optional header
static bool	printVector (int *v, int n, string header="")
	print content of a vector of int with optional header
static bool	printVector (vector< double > &v, string header="")
	print content of a vector of double with optional header
static bool	printVector (double *v, int n, string header="")
	print content of a vector of double with optional header
static string	tValueName (double t)
	return name of a t-value
static double	vectorSum (vector< double > &v)
	compute the sum of a vector
static double	vectorSum (double *v, int n)
	compute the sum of a vector

---

Detailed Description

Base class for math operations.

---

Member Function Documentation

static double XeMath::computePolynomial	(	double	x,
		int	n,
		double *	coef
	)			[static]

Compute polynomail in a efficient way.

Parameters:

	x	value at which it's evaluated
	n	degree of a polynomial
	coef	array of n+1 coefficients

static bool XeMath::equalizeVector

(

vector< double > &

v

)

[static]

equalize a vector, set all its value equal, conserving the sum

Parameters:

v

vector

static bool XeMath::equalizeVector	(	double *	v,
		int	n
	)			[static]

equalize a vector, set all its value equal, conserving the sum

Parameters:

	v	pointer to array
	n	number of elements

static int XeMath::indexInterval	(	double	v,
		double	vMin,
		double	vMax,
		int	nInter,
		bool	log = false
	)			[static]

Return the index of value in a interval.

Parameters:

	v	Value to be checked
	vMin	Lower edge of the interval
	vMax	Upper edge of the interval
	nInterval	number of intervals
	log	are we in log scale?

static bool XeMath::normalizeVector	(	vector< double > &	vin,
		vector< double > &	vout
	)			[static]

normalize a vector so that its sum is 1.

Parameters:

	vin	input vector
	vout	output vector

static bool XeMath::normalizeVector

(

vector< double > &

v

)

[static]

normalize a vector so that its sum is 1.

Parameters:

v

vector (both input and output)

static bool XeMath::normalizeVector	(	double *	vin,
		int	n,
		double *	vout = NULL
	)			[static]

normalize a vector so that its sum is 1.

Parameters:

	vin	pointer to input array
	n	number of elements
	vout	pointer to output array; if NULL, will be replaced in place

static string XeMath::tValueName

(

double

t

)

[static]

return name of a t-value

Parameters:

t

"t-value"

static double XeMath::vectorSum

(

vector< double > &

v

)

[static]

compute the sum of a vector

Parameters:

v

vector

static double XeMath::vectorSum	(	double *	v,
		int	n
	)			[static]

compute the sum of a vector

Parameters:

	v	pointer to input array
	n	number of elements

---

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

• /home/lellouch/Dropbox/Xenon/Xephyr/XeMath.h