S_k1

Modified spherical Bessel function of the third kind and order one.

Loading LOADSUB ALL FROM "BESMS.HTS"

or LOADSUB FROM "MATHLIB.HTS"

Usage REAL X,Y

Y=FNS_k1(X)

Description

FNS_k1 returns the value of the modified spherical Bessel function of the third kind and order one of x, k1(x). K1(x) is defined for all values of x except zero, but large negative values of x or values of x near zero may cause the result to be larger in magnitude than MAXREAL, the largest value representable.

Errors

FNS_k1 causes an HTBasic error if its argument is not of type REAL, if x is zero, or if the result would be larger than MAXREAL.

k1(x)

See Also S_i0, S_im0, S_k0, S_kn