Yn

Bessel function of the second kind, order n.

Loading LOADSUB ALL FROM "BESRC.HTS"

or LOADSUB FROM "MATHLIB.HTS"

Usage INTEGER N

REAL X,Y

Y=FNYn(N,X)

Description

FNYn returns the value of the cylindrical Bessel function of the second kind and order n of x, Yn(x). Yn(x) is defined for all positive values of x.

Errors

FNYn causes an HTBasic error if its argument is not of type REAL or if x is negative or zero.

See Also

Y0, Y1

Yn(x)

Note

The algorithm used computes the value of Yn using a recursion from the values of Y0 and Y1. The computation time increases with n and the computation accuracy decreases with n - 1.