Estimates with a value, $ x $ , and a variance, $\sigma^2$ . More...

#include <Estimate.h>

Public Types
typedef T	val_type

typedef U	var_type

Public Member Functions
	Estimate (T _val=0, U _var=0)
	Construct from a value, , and its variance, $\sigma_x^2$ .

template<typename V , typename W >
	Estimate (const Estimate< V, W > &d)
	Construct from another Estimate.

template<typename V , typename W >
	Estimate (const MeanEstimate< V, W > &m)
	Construct from MeanEstimate.

template<typename V , typename W >
	Estimate (const MeanRadian< V, W > &m)
	Construct from MeanRadian.

const Estimate &	operator= (const Estimate &d)
	Assignment operator.

void	set_value (const T &t)
	Set the value.

T	get_value () const
	Get the value.

void	set_variance (const U &u)
	Set the variance.

U	get_variance () const
	Get the variance.

void	set_error (const U &u)
	Set the error.

U	get_error () const
	Get the error.

T &	operator[] (unsigned)
	Array access to value.

T	operator[] (unsigned) const
	Array access to value.

const Estimate &	operator+= (const Estimate &d)
	Addition operator.

const Estimate &	operator-= (const Estimate &d)
	Subtraction operator.

const Estimate &	operator*= (const Estimate &d)
	Multiplication operator. More...

const Estimate &	operator/= (const Estimate &d)
	Division operator.

bool	operator== (const Estimate &d) const
	Equality operator.

bool	operator!= (const Estimate &d) const
	Inequality operator.

bool	operator< (const Estimate &d) const
	Comparison operator.

bool	operator> (const Estimate &d) const
	Comparison operator.

const Estimate	inverse () const
	Inversion operator. More...

Public Attributes
T	val
	The value, .

U	var
	The variance of the value, $\sigma_x^2$ .

Friends
const Estimate	operator+ (Estimate a, const Estimate &b)

const Estimate	operator- (Estimate a, const Estimate &b)

const Estimate	operator* (Estimate a, const Estimate &b)

const Estimate	operator/ (Estimate a, const Estimate &b)

const Estimate	operator- (Estimate a)
	Negation operator.

const Estimate	exp (const Estimate &u)
	See http://mathworld.wolfram.com/ErrorPropagation.html Equation (15)

const Estimate	log (const Estimate &u)
	See http://mathworld.wolfram.com/ErrorPropagation.html Equation (17)

const Estimate	sqrt (const Estimate &u)
	${\partial\over\partial x} x^{1\over2} = {1\over2}x^{-{1\over2}}$

const Estimate	sin (const Estimate &u)
	$\left({\partial\sin x\over\partial x}\right)^2 = (1-\sin^2x)$

const Estimate	cos (const Estimate &u)
	$\left({\partial\cos x\over\partial x}\right)^2 = (1-\cos^2x)$

const Estimate	atan (const Estimate &u)
	${\partial\over\partial x} \tan^-1 (x) = (1+x^2)^{-1}$

const Estimate	atan2 (const Estimate &s, const Estimate &c)
	${\partial\over\partial x} \tan^-1 (x) = (1+x^2)^{-1}$

const Estimate	sinh (const Estimate &u)
	$\left({\partial\sinh x\over\partial x}\right)^2 = (1+\sinh^2x)$

const Estimate	cosh (const Estimate &u)
	$\left({\partial\cosh x\over\partial x}\right)^2 = (\cosh^2x-1)$

const Estimate	atanh (const Estimate &u)
	${\partial\over\partial x} \tanh^-1 (x) = (1-x^2)^{-1}$

int	isfinite (const Estimate &u)

int	isinf (const Estimate &u)

int	isnan (const Estimate &u)

const T	abs (const Estimate &u)

const Estimate	copysign (const Estimate &u, const Estimate &v)