Dynamic variable for Pi. More...

#include <Variable.h>

Inheritance diagram for PrecisionVariable:

Public Member Functions
	PrecisionVariable (const PrecisionVariable *variable)

ExpressionItem *	copy () const

bool	representsInteger (bool=false)

bool	representsNonInteger (bool=false)

int	id () const

Public Member Functions inherited from DynamicVariable
	DynamicVariable (std::string cat_, std::string name_, std::string title_="", bool is_local=false, bool is_builtin=true, bool is_active=true)

	DynamicVariable (const DynamicVariable *variable)

void	set (const ExpressionItem *item)

const MathStructure &	get ()

void	set (const MathStructure &o)

void	set (std::string expression_)

int	calculatedPrecision () const

virtual bool	representsPositive (bool=false)

virtual bool	representsNegative (bool=false)

virtual bool	representsNonNegative (bool=false)

virtual bool	representsNonPositive (bool=false)

virtual bool	representsNumber (bool=false)

virtual bool	representsRational (bool=false)

virtual bool	representsReal (bool=false)

virtual bool	representsComplex (bool=false)

virtual bool	representsNonZero (bool=false)

virtual bool	representsEven (bool=false)

virtual bool	representsOdd (bool=false)

virtual bool	representsUndefined (bool=false, bool=false, bool=false)

virtual bool	representsBoolean ()

virtual bool	representsNonMatrix ()

virtual bool	representsScalar ()

Public Member Functions inherited from KnownVariable
	KnownVariable (std::string cat_, std::string name_, const MathStructure &o, std::string title_="", bool is_local=true, bool is_builtin=false, bool is_active=true)

	KnownVariable (std::string cat_, std::string name_, std::string expression_, std::string title_="", bool is_local=true, bool is_builtin=false, bool is_active=true)

	KnownVariable ()

	KnownVariable (const KnownVariable *variable)

bool	isKnown () const

virtual bool	isExpression () const

virtual std::string	expression () const

virtual std::string	uncertainty (bool *is_relative=NULL) const

virtual std::string	unit () const

int	subtype () const

virtual void	setUncertainty (std::string standard_uncertainty, bool is_relative=false)

virtual void	setUnit (std::string unit_expression)

virtual bool	representsFraction (bool=false)

virtual bool	representsNonComplex (bool=false)

Public Member Functions inherited from Variable
	Variable (std::string cat_, std::string name_, std::string title_="", bool is_local=true, bool is_builtin=false, bool is_active=true)

	Variable (const Variable *variable)

virtual int	type () const

Public Member Functions inherited from ExpressionItem
	ExpressionItem (std::string cat_, std::string name_, std::string title_="", std::string descr_="", bool is_local=true, bool is_builtin=false, bool is_active=true)

virtual bool	destroy ()

bool	isRegistered () const

void	setRegistered (bool is_registered)
	For internal use.

virtual const std::string &	name (bool use_unicode=false, bool(can_display_unicode_string_function)(const char , void )=NULL, void can_display_unicode_string_arg=NULL) const

virtual const std::string &	referenceName () const

virtual const ExpressionName &	preferredName (bool abbreviation=false, bool use_unicode=false, bool plural=false, bool reference=false, bool(can_display_unicode_string_function)(const char , void )=NULL, void can_display_unicode_string_arg=NULL) const

virtual const ExpressionName &	preferredInputName (bool abbreviation=false, bool use_unicode=false, bool plural=false, bool reference=false, bool(can_display_unicode_string_function)(const char , void )=NULL, void can_display_unicode_string_arg=NULL) const

virtual const ExpressionName &	preferredDisplayName (bool abbreviation=false, bool use_unicode=false, bool plural=false, bool reference=false, bool(can_display_unicode_string_function)(const char , void )=NULL, void can_display_unicode_string_arg=NULL) const

virtual const ExpressionName &	getName (size_t index) const

virtual void	setName (const ExpressionName &ename, size_t index=1, bool force=true)

virtual void	setName (std::string sname, size_t index, bool force=true)

virtual void	addName (const ExpressionName &ename, size_t index=0, bool force=true)

virtual void	addName (std::string sname, size_t index=0, bool force=true)

virtual size_t	countNames () const

virtual void	clearNames ()

virtual void	clearNonReferenceNames ()

virtual void	removeName (size_t index)

virtual size_t	hasName (const std::string &sname, bool case_sensitive=true) const

virtual size_t	hasNameCaseSensitive (const std::string &sname) const

virtual const ExpressionName &	findName (int abbreviation=-1, int use_unicode=-1, int plural=-1, bool(can_display_unicode_string_function)(const char , void )=NULL, void can_display_unicode_string_arg=NULL) const

virtual const std::string &	title (bool return_name_if_no_title=true, bool use_unicode=false, bool(can_display_unicode_string_function)(const char , void )=NULL, void can_display_unicode_string_arg=NULL) const

virtual void	setTitle (std::string title_)

virtual const std::string &	description () const

virtual void	setDescription (std::string descr_)

virtual const std::string &	category () const

virtual void	setCategory (std::string cat_)

virtual bool	hasChanged () const

virtual void	setChanged (bool has_changed)

virtual bool	isLocal () const

virtual bool	setLocal (bool is_local=true, int will_be_active=-1)

virtual bool	isBuiltin () const

virtual bool	isApproximate () const

virtual void	setApproximate (bool is_approx=true)

virtual int	precision () const

virtual void	setPrecision (int prec)

virtual bool	isActive () const

virtual void	setActive (bool is_active)

virtual bool	isHidden () const

virtual void	setHidden (bool is_hidden)

virtual int	refcount () const

virtual void	ref ()

virtual void	unref ()

virtual void	ref (ExpressionItem *o)

virtual void	unref (ExpressionItem *o)

virtual ExpressionItem *	getReferencer (size_t index=1) const

virtual bool	changeReference (ExpressionItem o_from, ExpressionItem o_to)

Additional Inherited Members
Protected Member Functions inherited from DynamicVariable
Protected Attributes inherited from DynamicVariable
bool	always_recalculate

Protected Attributes inherited from KnownVariable
MathStructure *	mstruct

MathStructure *	mstruct_alt

bool	b_expression

int	calculated_precision

std::string	sexpression

std::string	suncertainty

std::string	sunit

bool	b_relative_uncertainty

Protected Attributes inherited from ExpressionItem
std::string	scat

std::string	stitle

std::string	sdescr

bool	b_local

bool	b_changed

bool	b_builtin

bool	b_approx

bool	b_active

bool	b_registered

bool	b_hidden

bool	b_destroyed

int	i_ref

int	i_precision

std::vector< ExpressionItem * >	v_refs

std::vector< ExpressionName >	names

Detailed Description

Dynamic variable for Pi.

Dynamic variable for e, the base of natural logarithms Dynamic variable for Euler's constant Dynamic variable for Catalan's constant Dynamic variable for current precision

Member Function Documentation

◆ copy()

ExpressionItem * PrecisionVariable::copy ( ) const

inlinevirtual

Implements DynamicVariable.

◆ id()

int PrecisionVariable::id ( ) const

inlinevirtual

Reimplemented from KnownVariable.

◆ representsInteger()

bool PrecisionVariable::representsInteger ( bool = false )

inlinevirtual

Reimplemented from DynamicVariable.

◆ representsNonInteger()

bool PrecisionVariable::representsNonInteger ( bool = false )

inlinevirtual

Reimplemented from DynamicVariable.

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

/home/hanna/Utveckling/libqalculate/libqalculate/Variable.h

Public Member Functions

Additional Inherited Members

Detailed Description

Member Function Documentation

◆ copy()

◆ id()

◆ representsInteger()

◆ representsNonInteger()