`TExpression`
pt		GetInfix
pt		GetRPN
pt		Simpleop
pt		Simpleopwithresult
pt		IntDerive
pt		GetIntValue
pt		SetIntValue
pt		GetFloatValue
pt		SetFloatValue
pt		UpdateConstants
		Create
		EmptyCreate
		Destroy
		SetNewInfix
		Derive
		SymbolSubst
		SymbolicValueNames
		Taylor
		Newton
		SimplifyConstants
		add
		dvd
		mul
		power
		sub
		Addto
		Divby
		RaiseTo
		SubFrom
		Times

`TBaseExprParser`
		InFixToParseTree
		ParseTreeToRPN
		ParseTreeToInfix

`TBaseExpression`
pt		NewConst
pt		NewiConst
pt		NewCalc
pt		CopyTree
pt		NewFunc
pt		NewVar
pt		DisposeExpr