com.singularsys.jep.functions
Class RInt

java.lang.Object
  com.singularsys.jep.functions.PostfixMathCommand
      com.singularsys.jep.functions.Round
          com.singularsys.jep.functions.RInt

All Implemented Interfaces:

PostfixMathCommandI, java.io.Serializable

public class RInt
extends Round

A PostfixMathCommandI which rounds a number to the closest integer.
rint(2.4) finds the closest integer to the argument (2).
rint(2.1234, 3) rounds the argument to 3 decimal places (2.123).

RInt differs from the Round class in that it uses the Math.rint() method rather than Math.round(). Unlike Math.round(), in the case of a tie (e.g 1.5) Math.rint() prefers the nearest even integer (so rint(1.5) = 2). This has better statistical properties.

Since:

3.4

Author:

Nathan Funk

See Also:

Round, Serialized Form

Field Summary

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

curNumberOfParameters, name, NaN, numberOfParameters

Constructor Summary

RInt()

Method Summary

protected double

round(double param) The rounding method which implements the core rounding operation used in this class.

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

checkNumberOfParameters, round, run

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

asArray, asBool, asDouble, asInt, asLong, asStrictInt, asString, checkStack, getName, getNumberOfParameters, setCurNumberOfParameters, setName, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

RInt

public RInt()

Method Detail

round

protected double round(double param)

Description copied from class: Round

The rounding method which implements the core rounding operation used in this class. Other subclasses (such as RInt) can override this to perform custom rounding.

Overrides:

round in class Round

Returns:

the rounded value