org.matheclipse.core.reflection.system

Class Thread

java.lang.Object

org.matheclipse.core.eval.interfaces.AbstractFunctionEvaluator

org.matheclipse.core.reflection.system.Thread

All Implemented Interfaces:

IFunctionEvaluator, IEvaluator

public class Thread
extends AbstractFunctionEvaluator

Constructor Summary

Constructors

Constructor and Description
Thread()

Method Summary

Modifier and Type	Method and Description
IExpr	evaluate(IAST ast) Symbolic evaluation of a function.
static IAST	threadList(IAST list, IExpr head, IExpr mapHead, int headOffset) Thread through all lists in the arguments of the IAST [i.e.

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

Constructor Detail

Thread

public Thread()

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

threadList

public static IAST threadList(IAST list,
                              IExpr head,
                              IExpr mapHead,
                              int headOffset)

Thread through all lists in the arguments of the IAST [i.e. the list header has the attribute ISymbol.LISTABLE] example: Sin[{2,x,Pi}] ==> {Sin[2],Sin[x],Sin[Pi]}

Parameters:

list -

head - the head over which

listLength - the length of the list

Returns: