| libqalculate-5.6.0
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| CArgument | A mathematical function argument definition with free value and base class for all argument definitions | 
| CAngleArgument | |
| CArgumentSet | A set of accepted arguments | 
| CBooleanArgument | A boolean argument | 
| CDataObjectArgument | Data object function argument | 
| CDataPropertyArgument | Data property function argument | 
| CDateArgument | A date argument | 
| CExpressionItemArgument | Argument for functions, variables and units | 
| CFileArgument | |
| CFunctionArgument | A function argument | 
| CIntegerArgument | A definition for integer arguments | 
| CMatrixArgument | A matrix argument | 
| CNumberArgument | A definition for numerical arguments | 
| CSymbolicArgument | A symbolic argument | 
| CTextArgument | A text argument | 
| CUnitArgument | |
| CVariableArgument | |
| CVectorArgument | A std::vector argument | 
| CAssumptions | An assumption about an unknown mathematical value | 
| CCalculator | The almighty calculator class | 
| CCalculatorMessage | A message with information to the user. Primarily used for errors and warnings | 
| CDataObject | A a data set object | 
| CDataProperty | A data set property | 
| CElement | |
| CEvaluationOptions | Options for calculation | 
| CExpressionItem | Abstract base class for functions, variables and units | 
| CMathFunction | Abstract base class for mathematical functions | 
| CDataSet | A data set | 
| CUserFunction | A user defined mathematical function | 
| CUnit | A unit for measurement | 
| CAliasUnit | An unit with relation to another unit | 
| CAliasUnit_Composite | A subunit in a CompositeUnit | 
| CCompositeUnit | A unit consisting of a number of other units | 
| CVariable | Abstract base class for variables | 
| CKnownVariable | A variable with a known value | 
| CDynamicVariable | Abstract base class for variables with a value which is recalculated when the precision has changed | 
| CNowVariable | |
| CPrecisionVariable | Dynamic variable for Pi | 
| CTodayVariable | |
| CTomorrowVariable | |
| CUptimeVariable | |
| CYesterdayVariable | |
| CUnknownVariable | A variable with unknown value | 
| CExpressionItem_p | |
| CExpressionName | A name for an expression item (function, variable or unit) | 
| CInternalPrintStruct | |
| CMathStructure | A structure representing a mathematical value/expression/result | 
| CMathStructure_p | |
| CNumber | A number | 
| CParseOptions | Options for parsing expressions | 
| CPlotDataParameters | Parameters for plot data series | 
| CPlotParameters | Parameters passed to plotting functions | 
| CPrefix | Abstract class for prefixes | 
| CBinaryPrefix | A binary prefix | 
| CDecimalPrefix | A decimal (metric) prefix | 
| CNumberPrefix | A prefix with a free numerical value | 
| CPrintOptions | Options for formatting and display of mathematical structures/results | 
| CQalculateDateTime | |
| CSortOptions | Options for ordering the parts of a mathematical expression/result before display | 
| CThread |