Example: The Bessel Functions

import com.imsl.math.*;

public class BesselEx1 {

    public static void main(String args[]) {
        double x = 10.e0;
        int hiorder = 4;
        //	Exercise some of the Bessel functions with argument 10.0
        double bi[] = Bessel.I(x, hiorder);
        double bj[] = Bessel.J(x, hiorder);
        double bk[] = Bessel.K(x, hiorder);

        System.out.println("Order  Bessel.I     Bessel.J     Bessel.K");
        for (int i = 0; i < 4; i++) {
            System.out.printf("  %d   %10.4f %10.4f  %10.4f\n",
                    i, bi[i], bj[i], bk[i]);
        }
    }
}

Output

Order  Bessel.I     Bessel.J     Bessel.K
  0    2815.7166    -0.2459      0.0000
  1    2670.9883     0.0435      0.0000
  2    2281.5190     0.2546      0.0000
  3    1758.3807     0.0584      0.0000