Class Polynomial

java.lang.Object
sim.util.distribution.Constants
sim.util.distribution.Polynomial
All Implemented Interfaces:
Serializable

public class Polynomial extends Constants
Polynomial functions.
See Also:
  • Field Summary

    Fields inherited from class sim.util.distribution.Constants

    big, biginv, LOGPI, MACHEP, MAXGAM, MAXLOG, MINLOG, SQRTH, SQTPI
  • Constructor Summary

    Constructors
    Modifier
    Constructor
    Description
    protected
    Makes this class non instantiable, but still let's others inherit from it.
  • Method Summary

    Modifier and Type
    Method
    Description
    static double
    p1evl(double x, double[] coef, int N)
    Evaluates the given polynomial of degree N at x, assuming coefficient of N is 1.0.
    static double
    polevl(double x, double[] coef, int N)
    Evaluates the given polynomial of degree N at x.

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
  • Constructor Details

    • Polynomial

      protected Polynomial()
      Makes this class non instantiable, but still let's others inherit from it.
  • Method Details

    • p1evl

      public static double p1evl(double x, double[] coef, int N) throws ArithmeticException
      Evaluates the given polynomial of degree N at x, assuming coefficient of N is 1.0. Otherwise same as polevl().
                           2          N
       y  =  C  + C x + C x  +...+ C x
              0    1     2          N
      
       where C  = 1 and hence is omitted from the array.
              N
      
       Coefficients are stored in reverse order:
      
       coef[0] = C  , ..., coef[N-1] = C  .
                  N-1                   0
      
       Calling arguments are otherwise the same as polevl().
       
      In the interest of speed, there are no checks for out of bounds arithmetic.
      Parameters:
      x - argument to the polynomial.
      coef - the coefficients of the polynomial.
      N - the degree of the polynomial.
      Throws:
      ArithmeticException
    • polevl

      public static double polevl(double x, double[] coef, int N) throws ArithmeticException
      Evaluates the given polynomial of degree N at x.
                           2          N
       y  =  C  + C x + C x  +...+ C x
              0    1     2          N
      
       Coefficients are stored in reverse order:
      
       coef[0] = C  , ..., coef[N] = C  .
                  N                   0
       
      In the interest of speed, there are no checks for out of bounds arithmetic.
      Parameters:
      x - argument to the polynomial.
      coef - the coefficients of the polynomial.
      N - the degree of the polynomial.
      Throws:
      ArithmeticException