| AliasUnit | An unit with relation to another unit |
| AliasUnit_Composite | A subunit in a CompositeUnit |
| Argument | A mathematical function argument definition with free value and base class for all argument definitions |
| ArgumentSet | A set of accepted arguments |
| Assumptions | An assumption about an unknown mathematical value |
| BinaryPrefix | A binary prefix |
| BooleanArgument | A boolean argument |
| Calculator | The almighty calculator class |
| CalculatorMessage | A message with information to the user. Primarily used for errors and warnings |
| CompositeUnit | A unit consisting of a number of other units |
| DataObject | A a data set object |
| DataObjectArgument | Data object function argument |
| DataProperty | A data set property |
| DataPropertyArgument | Data property function argument |
| DataSet | A data set |
| DateArgument | A date argument |
| DecimalPrefix | A decimal (metric) prefix |
| DynamicVariable | Abstract base class for variables with a value which is recalculated when the precision has changed |
| EvaluationOptions | Options for calculation |
| ExpressionItem | Abstract base class for functions, variables and units |
| ExpressionItemArgument | Argument for functions, variables and units |
| ExpressionName | A name for an expression item (function, variable or unit) |
| FunctionArgument | A function argument |
| IntegerArgument | A definition for integer arguments |
| KnownVariable | A variable with a known value |
| MathFunction | Abstract base class for mathematical functions |
| MathStructure | A structure representing a mathematical value/expression/result |
| MatrixArgument | A matrix argument |
| Number | A number |
| NumberArgument | A definition for numerical arguments |
| NumberPrefix | A prefix with a free numerical value |
| ParseOptions | Options for parsing expressions |
| PlotDataParameters | Parameters for plot data series |
| PlotParameters | Parameters passed to plotting functions |
| Prefix | Abstract class for prefixes |
| PrintOptions | Options for formatting and display of mathematical structures/results |
| SortOptions | Options for ordering the parts of a mathematical expression/result before display |
| SymbolicArgument | A symbolic argument |
| TextArgument | A text argument |
| Unit | A unit for measurement |
| UnknownVariable | A variable with unknown value |
| UserFunction | A user defined mathematical function |
| Variable | Abstract base class for variables |
| VectorArgument | A vector argument |
1.4.3