public class IntegrationApp
	{
	public static void main(String[] args)
		{
		if(args.length < 3)
			{
			System.out.println("Usage: Integration a b n");
			System.exit(1);
			}
		double a = Double.parseDouble(args[0]);
		double b = Double.parseDouble(args[1]);
		int n = Integer.parseInt(args[2]);
		String function = "f(x) = sin(x)";
		System.out.println("-- Numerical Integration --");
		System.out.println("Function: " + function);
		System.out.println("a = " + a);
		System.out.println("b = " + b);
		System.out.println("n = " + n);
		TrapezoidRule trapezoid = new TrapezoidRule(a,b,n);
		System.out.println("Trapezoid Rule: area = " + trapezoid.integrate());
		SimpsonsRule simpsons = new SimpsonsRule(a,b,n);
		System.out.println("Simpson's Rule: area = " + simpsons.integrate());
		}
	}

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