Package org.apache.commons.math3.special

Class BesselJ.BesselJResult

java.lang.Object
org.apache.commons.math3.special.BesselJ.BesselJResult
Enclosing class:
BesselJ
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 invalid input: '<' 0: An argument is out of range. For example, nb invalid input: '<'= 0, alpha invalid input: '<' 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 invalid input: '<' nVals, but precision is lost for nVals invalid input: '<' n invalid input: '<'= 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 Details

    • BesselJResult

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

  • Method Details

    • getVals

      public double[] getVals()
      Returns:
      the computed function values

    • getnVals

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