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  (c) TransEra Corp, 2021
S_h11
Spherical Hankel function of the first kind, order one.
 
Loading        LOADSUB ALL FROM "BESRS.HTS"
or LOADSUB FROM "MATHLIB.HTS"
 
Usage                                REAL X
COMPLEX C
C=FNS_h11(X)                                                                                                
 
Description                
FNS_h11 returns the value of the spherical Hankel function of the first kind and order one of x, h1(1)(x). The real component returned contains j1(x) and the imaginary component returned contains y1(x).
 
H1(1)(x) is sometimes also called the spherical Bessel function of the third kind, order 1.
 
Errors                
FNS_h11 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(1)(0) is -.
 
See Also
S_h10, S_h21, S_j1, S_y1
 
h1(1)(x)
 
Arg[h1(1)(x)], degrees