org.matheclipse.core.builtin.function

Class NumericQ

java.lang.Object

org.matheclipse.core.eval.interfaces.AbstractCoreFunctionEvaluator

org.matheclipse.core.builtin.function.NumericQ

All Implemented Interfaces:

Predicate<IExpr>, ICoreFunctionEvaluator, IFunctionEvaluator, IEvaluator

public class NumericQ
extends AbstractCoreFunctionEvaluator
implements Predicate<IExpr>

Returns True, if the given expression is a numeric function or value.

Field Summary

Fields

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

Constructor Summary

Constructors

Constructor and Description
NumericQ()

Method Summary

Modifier and Type	Method and Description
boolean	apply(IExpr arg) Returns the result of applying this predicate to input.
IExpr	evaluate(IAST ast) Returns True if the first argument is a numeric object; False otherwise
void	setUp(ISymbol symbol) Evaluate built-in rules and define Attributes for a function.

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

numericEval

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 NumericQ CONST

Constructor for the unary predicate

Constructor Detail

NumericQ

public NumericQ()

Method Detail

apply

public boolean apply(IExpr arg)

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<IExpr>

evaluate

public IExpr evaluate(IAST ast)

Returns True if the first argument is a numeric object; False otherwise

Specified by:

evaluate in interface IFunctionEvaluator

Specified by:

evaluate in class AbstractCoreFunctionEvaluator

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

setUp

public void setUp(ISymbol symbol)
           throws SyntaxError

Description copied from class: AbstractCoreFunctionEvaluator

Evaluate built-in rules and define Attributes for a function.

Specified by:

setUp in interface IEvaluator

Overrides:

setUp in class AbstractCoreFunctionEvaluator

Parameters:

symbol - the symbol which should be set up

Throws:

SyntaxError