Package com.singularsys.jep.functions

Class Abs

java.lang.Object
com.singularsys.jep.functions.PostfixMathCommand
com.singularsys.jep.functions.UnaryFunction
com.singularsys.jep.functions.Abs
All Implemented Interfaces:
PostfixMathCommandI, RealUnaryFunction, Serializable
Direct Known Subclasses:
BigDecAbs
public class Abs extends UnaryFunction implements RealUnaryFunction
Absolute value function. For Numbers, it returns the absolute value of same type, so a Double will return a Double, Integer will return an Integer. For Complex it returns the modulus.
Version:
Jep 4.1 Now Accepts a Number argument, using its doubleValue()
Author:
Richard Morris
See Also:

  • Constructor Details

    • Abs

      public Abs()

  • Method Details

    • eval

      public Object eval(Object arg) throws EvaluationException
      Description copied from class: UnaryFunction
      Evaluate the function
      Specified by:
      eval in class UnaryFunction
      Parameters:
      arg - the single argument passed in
      Returns:
      the result of the function
      Throws:
      EvaluationException - on error

    • abs

      public Object abs(Object param) throws EvaluationException
      Calculates the absolute value of its argument
      Parameters:
      param - supports Double, Float, Integer, Long, Short, Complex and Number arguments
      Returns:
      the absolute value. Gives the same type as its argument except for Number arguments that are converted to Double before conversions and return a Double argument.
      Throws:
      EvaluationException - if type not supported

    • evaluate

      public double evaluate(double val)
      Description copied from interface: RealUnaryFunction
      Evaluate the function
      Specified by:
      evaluate in interface RealUnaryFunction
      Parameters:
      val - the argument
      Returns:
      the result of applying the function to the argument