Package com.singularsys.jepexamples.diagnostics

Class Utils

  • public class Utils
extends java.lang.Object
    Some common utility methods
    Since:
    Jep 3.5
    Author:
    Richard Morris

    • Constructor Summary

      Constructors 
      Constructor Description
      Utils()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.lang.String hornerExpression​(java.lang.String varName, int nTerms)
      Generate a string giving an approximation to log using Horner expression of the form "x*(1/1-x*(1/2-x*(1/3-x*(1/4 ...))))"
      static java.lang.String lnExpression​(java.lang.String varName, int nDeriv)
      Generate string giving approximation to log
      static java.lang.String recursiveHornerExpression​(java.lang.String varName, java.lang.String lastVar, int nTerms)  

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • Utils

        public Utils()

    • Method Detail

      • hornerExpression

        public static java.lang.String hornerExpression​(java.lang.String varName,
                                                int nTerms)
        Generate a string giving an approximation to log using Horner expression of the form "x*(1/1-x*(1/2-x*(1/3-x*(1/4 ...))))"
        Parameters:
        varName -
        nTerms -
        Returns:
        a string containing the expression

      • recursiveHornerExpression

        public static java.lang.String recursiveHornerExpression​(java.lang.String varName,
                                                         java.lang.String lastVar,
                                                         int nTerms)

      • lnExpression

        public static java.lang.String lnExpression​(java.lang.String varName,
                                            int nDeriv)
        Generate string giving approximation to log