org.activemath.exercises.openmath.services
Class ArithmeticExpressionEvaluator

java.lang.Object
  org.activemath.exercises.openmath.OpenMathService
      org.activemath.exercises.openmath.services.ArithmeticExpressionEvaluator

public class ArithmeticExpressionEvaluator
extends OpenMathService

Arithmetic expression evaluator OpenMath service. Evaluates OpenMath expressions with arithmetic symbols in them, as double-precision floating point numbers.

Version:

$Revision: 1.13 $ $Date: 2008/11/25 14:24:39 $

Field Summary

Fields inherited from class org.activemath.exercises.openmath.OpenMathService

comparatorCD, comparatorName, context, expressionTransformer, om, xpathError, xpathHint, xpathQuit

Constructor Summary

ArithmeticExpressionEvaluator()

Method Summary

org.jdom.Element	evaluate(org.jdom.Element expressionOmobj, Map variables) Evaluate the expression, and return its value as the JDom tree of the OpenMath XML with the result.
static void	main(String[] args)

Methods inherited from class org.activemath.exercises.openmath.OpenMathService

abort, console, evaluateEquivalence, selectContext, setComparator, setExpressionTransformer

Methods inherited from class java.lang.Object

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

Constructor Detail

ArithmeticExpressionEvaluator

public ArithmeticExpressionEvaluator()

Method Detail

main

public static void main(String[] args)

evaluate

public org.jdom.Element evaluate(org.jdom.Element expressionOmobj,
                                 Map variables)

Evaluate the expression, and return its value as the JDom tree of the OpenMath XML with the result.

Overrides:

evaluate in class OpenMathService

Returns:

OMOBJ element (with OM namespace) containing the value.