Package com.singularsys.jep.bigdecimal.functions

Class BigDecMul

java.lang.Object

com.singularsys.jep.functions.PostfixMathCommand

com.singularsys.jep.functions.NaryBinaryFunction

com.singularsys.jep.functions.Multiply

com.singularsys.jep.bigdecimal.functions.BigDecMul

All Implemented Interfaces:

FixedPrecisionFunctionI, PostfixMathCommandI, RealBinaryFunction, Serializable

public class BigDecMul
extends Multiply
implements FixedPrecisionFunctionI

Multiplication function for BigDecimals, Double and other Number types. Uses BigDecimal.multiply(BigDecimal,MathContext).

Since Jep 4.1 can work with vectors.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected MathContext	mc
protected int	scale

Fields inherited from class com.singularsys.jep.functions.PostfixMathCommand

curNumberOfParameters, description, name, NaN, numberOfParameters

Constructor Summary

Constructors

Constructor	Description
BigDecMul(MathContext mc)
BigDecMul(MathContext mc, int scale)

Method Summary

Modifier and Type	Method	Description
Object	eval(Object[] args)	Evaluate given an array of arguments.
int	getDecimalPlaces()	Gets the number of decimal places used.
MathContext	getMathContext()
Object	mul(Object l, Object r)
void	run(Stack<Object> stack)	Calls NaryBinaryFunction.eval(Object, Object)
void	setDecimalPlaces(int scale)	Sets the number of decimal places to use.
void	setMathContext(MathContext mc)

Methods inherited from class com.singularsys.jep.functions.Multiply

eval, evaluate, mul, mul, mul, mul, mul

Methods inherited from class com.singularsys.jep.functions.NaryBinaryFunction

checkNumberOfParameters, instanceOf, instanceOf, instanceOf, instanceOf

Methods inherited from class com.singularsys.jep.functions.PostfixMathCommand

asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, asType, getDescription, getDescription, getDescriptionWithType, getName, getNumberOfParameters, setCurNumberOfParameters, setDescription, setName, toString, toString

Methods inherited from class java.lang.Object

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

Field Details

mc

protected MathContext mc

scale

protected int scale

Constructor Details

BigDecMul

public BigDecMul(MathContext mc)

Parameters:

mc -

BigDecMul

public BigDecMul(MathContext mc,
 int scale)

Method Details

mul

public Object mul(Object l,
 Object r)
           throws EvaluationException

Overrides:

mul in class Multiply

Throws:

EvaluationException

eval

public Object eval(Object[] args)
            throws EvaluationException

Description copied from class: NaryBinaryFunction

Evaluate given an array of arguments. Calls the NaryBinaryFunction.eval(Object, Object) method for the first pair of arguments, then repeatedly with the current result and the next argument.

Overrides:

eval in class NaryBinaryFunction

Parameters:

args - array of arguments to function, must have at least one element

Returns:

result of function

Throws:

EvaluationException - if empty array

run

public void run(Stack<Object> stack)
         throws EvaluationException

Description copied from class: NaryBinaryFunction

Calls NaryBinaryFunction.eval(Object, Object)

Specified by:

run in interface PostfixMathCommandI

Overrides:

run in class NaryBinaryFunction

Parameters:

stack - arguments for function

Throws:

EvaluationException - if function cannot be evaluated

getMathContext

public MathContext getMathContext()

setMathContext

public void setMathContext(MathContext mc)

setDecimalPlaces

public void setDecimalPlaces(int scale)

Description copied from interface: FixedPrecisionFunctionI

Sets the number of decimal places to use.

Specified by:

setDecimalPlaces in interface FixedPrecisionFunctionI

Parameters:

scale - either zero, a positive number or -1 for floating-point formats

getDecimalPlaces

public int getDecimalPlaces()

Description copied from interface: FixedPrecisionFunctionI

Gets the number of decimal places used.

Specified by:

getDecimalPlaces in interface FixedPrecisionFunctionI

Returns:

either zero, a positive number or -1 for floating-point formats