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  (c) TransEra Corp, 2021
S_h21
Spherical Hankel function of the second kind, order one.
 
Loading        LOADSUB ALL FROM "BESRS.HTS"
or LOADSUB FROM "MATHLIB.HTS"
 
Usage                REAL X
COMPLEX C
C=FNS_h21(X)
 
Description                
FNS_h21 returns the value of the Hankel function of the second kind and order one of x, h1(2)(x). The real component returned contains j1(x) and the imaginary component returned contains -y1(x).
 
Errors                
FNS_h21 causes an HTBasic error if its argument is not of type REAL. It also causes an error if the value of x is near zero, since the imaginary component of h1(2)(0) is infinite.
 
See Also
S_h11, S_h20, S_j1, S_y1
 
h1(2)(x)
 
 
Arg[h1(2)(x)], degrees