// This example shows the symbolic derivation "plugin"
class Test
{

    public static final double omega = 3.276;
    public static final double theta = 0.227;
    public static final double decay = 1.447E-3;

    public static int main(String args[]) {

        // Tabulate the following expression
        for (double t = 0.0; t < 50.0; t += 0.01) {
            double y = d(sin(2 * omega * t + theta) * exp(-decay * t))/dt;
            System.out.println("t=" + t + ", y=" + y);
        }
    }
}