public class Polynomial{
    private static final int NUM_TERMS = 10;
    private static final double TOLERANCE = 1E-10;
    private double[] cArray;
    public Polynomial(){
	cArray = new double[NUM_TERMS];
    }
    public Polynomial (double[] coefArray){
	cArray = new double[NUM_TERMS];
	for (int i=0; i<NUM_TERMS && i<coefArray.length; i++)
	    cArray[i] = coefArray[i];
    }
    public int degree(){
	for (int i=NUM_TERMS-1; i>=0; i--)
	    if (Math.abs(cArray[i])>TOLERANCE)
		return i;
	return 0;
    }
    public double getCoefficient(int power){
	if (power<NUM_TERMS && power>=0)
	    return cArray[power];
	else 
	    return 0.0;
    }
    public void changeCoefficient (double newCoef, int power){
	cArray[power] = newCoef;
    }
    public double functionValue (double x){
	double sum = cArray[0];
	for (int i=1; i<NUM_TERMS; i++)
	    sum += cArray[i] * Math.pow(x,i);
	return sum;
    }
}