Returns true iff this expression contains a ConstantBigDecimal leaf node.
Returns true iff this expression contains a ConstantDouble leaf node.
Returns true iff this expression contains a ConstantRational leaf node.
Returns true iff this expression contains an n-th root operation.
Returns true iff this expression is composed only of rational operations.
Returns the union of flags this and that.
A set of flags for algebraic expressions, so we can quickly determine some properties, like whether the expression is rational, radical, what types of leaf nodes it has, etc. This is used to help guide algorithmic choices, such as what separation bound to use.