Sgn class
The sign function.
- Inheritance
Constructors
- Sgn(Expression arg)
- Creates a new sign function with given argument expression.
Properties
- arg → Expression
-
The argument of this sign function.
no setter
-
args
↔ List<
Variable> -
List of arguments of this function. Arguments ust be of type Variable.
getter/setter pairinherited
- domainDimension → int
-
The dimension of the domain of definition of this function.
no setterinherited
- hashCode → int
-
The hash code for this object.
no setterinherited
- name ↔ String
-
Name of this function.
getter/setter pairinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
derive(
String toVar) → Expression -
Derives this expression with respect to the given variable.
override
-
evaluate(
EvaluationType type, ContextModel context) → dynamic -
Evaluates this expression according to given type and context.
override
-
getParam(
int i) → Variable -
Returns the i-th parameter of this function (0-based).
inherited
-
getParamByName(
String name) → Variable -
Returns the parameter with the given name.
inherited
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
simplify(
) → Expression -
Returns a simplified version of this expression.
Subclasses should overwrite this method, if applicable.
override
-
toFullString(
) → String -
Returns the full string representation of this function.
This could include the name, variables and expression.
inherited
-
toString(
) → String -
Returns a string version of this expression.
Subclasses should override this method. The output should be kept
compatible with the Parser.
inherited
Operators
-
operator %(
Expression exp) → Expression -
Modulo operator. Creates a Modulo expression.
inherited
-
operator &(
MathFunction g) → MathFunction -
Compose operator. Creates a CompositeFunction.
inherited
-
operator *(
Expression exp) → Expression -
Multiply operator. Creates a Times expression.
inherited
-
operator +(
Expression exp) → Expression -
Add operator. Creates a Plus expression.
inherited
-
operator -(
Expression exp) → Expression -
Subtract operator. Creates a Minus expression.
inherited
-
operator /(
Expression exp) → Expression -
Divide operator. Creates a Divide expression.
inherited
-
operator ==(
Object other) → bool -
The equality operator.
inherited
-
operator ^(
Expression exp) → Expression -
Power operator. Creates a Power expression.
inherited
-
operator unary-(
) → Expression -
Unary minus operator. Creates a UnaryMinus expression.
inherited