NumberLike
type NumberLike
A number-like type. Such a type is used in the documentation as a placeholder for generic parameters and return values that can take on a variety of types. Those types are defined as:
- some core type
T(see below), - a class type representing a delayed expression evaluating to
T, derived from Expression, - a struct type representing a delayed form evaluating to
T, derived from Form, and - the future type
T!.
NumberLike includes the full set of core types, while various subtypes of
it are defined that accept only subsets, as below.
| Type | Real core types | Integer core types | Boolean core types |
|---|---|---|---|
NumberLike |
Real, Real[_], Real[_,_] |
Integer, Integer[_], Integer[_,_] |
Boolean, Boolean[_], Boolean[_,_] |
NumberScalarLike |
Real |
Integer |
Boolean |
NumberVectorLike |
Real[_] |
Integer[_] |
Boolean[_] |
NumberMatrixLike |
Real[_,_] |
Integer[_,_] |
Boolean[_,_] |
RealLike |
Real, Real[_], Real[_,_] |
||
RealScalarLike |
Real |
||
RealVectorLike |
Real[_] |
||
RealMatrixLike |
Real[_,_] |
||
IntegerLike |
Integer, Integer[_], Integer[_,_] |
||
IntegerScalarLike |
Integer |
||
IntegerVectorLike |
Integer[_] |
||
IntegerMatrixLike |
Integer[_,_] |
||
BooleanLike |
Boolean, Boolean[_], Boolean[_,_] |
||
BooleanScalarLike |
Boolean |
||
BooleanVectorLike |
Boolean[_] |
||
BooleanMatrixLike |
Boolean[_,_] |
These types are typically used in the documentation for mathematical functions and operators that accept both eager and lazy evaluation.