org.matheclipse.core.reflection.system

Class OrderedQ

java.lang.Object

org.matheclipse.core.eval.interfaces.AbstractFunctionEvaluator

org.matheclipse.core.reflection.system.OrderedQ

All Implemented Interfaces:

Predicate<IAST>, IFunctionEvaluator, IEvaluator

public class OrderedQ
extends AbstractFunctionEvaluator
implements Predicate<IAST>

Field Summary

Fields

Modifier and Type	Field and Description
static OrderedQ	CONST Constructor for the unary predicate

Constructor Summary

Constructors

Constructor and Description
OrderedQ()

Method Summary

Modifier and Type	Method and Description
boolean	apply(IAST ast) Returns the result of applying this predicate to input.
IExpr	evaluate(IAST ast) Symbolic evaluation of a function.

Methods inherited from class org.matheclipse.core.eval.interfaces.AbstractFunctionEvaluator

createRuleFromMethod, getPeriodicParts, getPureImaginaryPart, getRuleAST, isNegativeExpression, numericEval, setUp

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.google.common.base.Predicate

equals

Field Detail

CONST

public static final OrderedQ CONST

Constructor for the unary predicate

Constructor Detail

OrderedQ

public OrderedQ()

Method Detail

evaluate

public IExpr evaluate(IAST ast)

Description copied from class: AbstractFunctionEvaluator

Symbolic evaluation of a function. ast.get(0) contains the head (i.e. the function symbol) of this abstract syntax tree (AST). ast.get(1) to ast.get(n) contains the first to n-th argument of the function.
If necessary use the methods from the Validate class to check the number or types of arguments in the evaluate method.
Note: if the symbolic evaluation isn't possible or no result is found the evaluate method returns with a null value without throwing an exception!

Specified by:

evaluate in interface IFunctionEvaluator

Specified by:

evaluate in class AbstractFunctionEvaluator

Parameters:

ast - the abstract syntax tree (AST) which should be evaluated

Returns:

the evaluated object or null, if evaluation isn't possible

See Also:

Validate

apply

public boolean apply(IAST ast)

Description copied from interface: Predicate

Returns the result of applying this predicate to input. This method is generally expected, but not absolutely required, to have the following properties:

• Its execution does not cause any observable side effects.
• The computation is consistent with equals; that is, Objects.equal(a, b) implies that predicate.apply(a) == predicate.apply(b)).

Specified by:

apply in interface Predicate<IAST>