Package com.singularsys.jep.bigdecimal.functions

Class BigDecNegate

java.lang.Object

com.singularsys.jep.functions.PostfixMathCommand

com.singularsys.jep.functions.UnaryFunction

com.singularsys.jep.functions.UMinus

com.singularsys.jep.bigdecimal.functions.BigDecNegate

All Implemented Interfaces:

FixedPrecisionFunctionI, PostfixMathCommandI, RealUnaryFunction, Serializable

public class BigDecNegate
extends UMinus
implements FixedPrecisionFunctionI

Unary minus negation function for BigDecimals. Uses BigDecimal.negate(MathContext).

Since Jep 4.1 can work with vectors.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class com.singularsys.jep.functions.UnaryFunction

UnaryFunction.FunctionWithException<T>

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
BigDecNegate(MathContext mc)
BigDecNegate(MathContext mc, int scale)

Method Summary

Modifier and Type	Method	Description
int	getDecimalPlaces()	Gets the number of decimal places used.
MathContext	getMathContext()
void	setDecimalPlaces(int scale)	Sets the number of decimal places to use.
void	setMathContext(MathContext mc)
Object	umin(Object l)

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

eval, evaluate

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

instanceOf, instanceOf, instanceOf, instanceOf, run

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

asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, asType, checkNumberOfParameters, 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

BigDecNegate

public BigDecNegate(MathContext mc)

Parameters:

mc -

BigDecNegate

public BigDecNegate(MathContext mc,
 int scale)

Method Details

umin

public Object umin(Object l)
            throws EvaluationException

Overrides:

umin in class UMinus

Throws:

EvaluationException

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