Free Java Package: function

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Brief:
This package can be used to work with polynomial functions.

Program Listing

Monomial.java
Function.java - an abstract class
Polynomial.java

How to use:
    Polynomial p = new Polynomial("3x^2 - 5x + 0");
    int x = 3;
    System.out.println("p: " + p.toString());
    System.out.println("p evaluated at " + x + " is " + p.f(x));
    System.out.println("the derivative of p evaluated at " + x + " is " + p.fp(x));
    System.out.println("p in nested form is " + p.fxToNestedForm());
    System.out.println("the derivative of p in nested form is " + p.fpxToNestedForm());

Download this package including the example files in here.