com.singularsys.jep.functions

## Class UnaryFunction

- java.lang.Object
- - com.singularsys.jep.functions.PostfixMathCommand
  - - com.singularsys.jep.functions.UnaryFunction

- All Implemented Interfaces:
    PostfixMathCommandI, java.io.Serializable
  Direct Known Subclasses:
    Abs, ArcCosine, ArcCosineH, ArcSine, ArcSineH, ArcTangent, ArcTanH, Arg, BitComp, Ceil, Conjugate, Cosecant, Cosine, CosineH, Cotangent, Exp, Factorial, Floor, Identity, Imaginary, IsInfinite, IsNaN, IsNull, IsType, Length, Logarithm, LogBase2, LowerCase, NaturalLogarithm, Not, NullWrappedUnary, Real, Secant, Signum, Sine, SineH, SquareRoot, Str, StrictNaturalLogarithm, Tangent, TanH, Trim, UMinus, UpperCase

      public abstract class UnaryFunction
      extends PostfixMathCommand

  Convenient base class for unary functions. Defines an `Object eval(Object arg)` method for calculating the result.
  Author:
    Richard Morris
  See Also:
    Serialized Form

- - ### Field Summary

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

      `curNumberOfParameters, name, NaN, numberOfParameters`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `UnaryFunction()`

  - ### Method Summary

    All Methods Instance Methods Abstract Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `abstract java.lang.Object` | `eval(java.lang.Object arg)`
    `void` | `run(java.util.Stack<java.lang.Object> stack)` Calls `eval(Object)`

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

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

    - ### Methods inherited from class java.lang.Object

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

- - ### Constructor Detail

    - #### UnaryFunction

          public UnaryFunction()

  - ### Method Detail

    - #### run

          public void run(java.util.Stack<java.lang.Object> stack)
                   throws EvaluationException

      Calls `eval(Object)`
      Specified by:
        `run` in interface `PostfixMathCommandI`
      Overrides:
        `run` in class `PostfixMathCommand`
      Parameters:
        `stack` - arguments for function
      Throws:
        `EvaluationException` - if function cannot be evaluated

    - #### eval

          public abstract java.lang.Object eval(java.lang.Object arg)
                                         throws EvaluationException

      Throws:
        `EvaluationException`

Copyright © 2018 Singular Systems http://www.singularsys.com/jep