Class BesselJ.BesselJResult

  • Enclosing class:

    public static class BesselJ.BesselJResult
    extends Object
    Encapsulates the results returned by BesselJ.rjBesl(double, double, int).

    getVals() returns the computed function values. getnVals() is the number of values among those returned by getnVals() that can be considered accurate.

    • nVals < 0: An argument is out of range. For example, nb <= 0, alpha < 0 or > 1, or x is too large. In this case, b(0) is set to zero, the remainder of the b-vector is not calculated, and nVals is set to MIN(nb,0) - 1 so that nVals != nb.
    • nb > nVals > 0: Not all requested function values could be calculated accurately. This usually occurs because nb is much larger than abs(x). In this case, b(n) is calculated to the desired accuracy for n < nVals, but precision is lost for nVals < n <= nb. If b(n) does not vanish for n > nVals (because it is too small to be represented), and b(n)/b(nVals) = \(10^{-k}\), then only the first NSIG-k significant figures of b(n) can be trusted.
    • Constructor Detail

      • BesselJResult

        public BesselJResult​(double[] b,
                             int n)
        Create a new BesselJResult with the given values and valid value count.
        b - values
        n - count of valid values
    • Method Detail

      • getVals

        public double[] getVals()
        the computed function values
      • getnVals

        public int getnVals()
        the number of valid function values (normally the same as the length of the array returned by getnVals())