S_i1Spherical Hankel function of the first kind, order one.
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Loading LOADSUB ALL FROM "BESMS.HTS"
or LOADSUB FROM "MATHLIB.HTS"
Usage REAL X,Y
Y=FNS_i1(X)
Description
FNS_i1 returns the value of the modified spherical Bessel function of the first kind and order one of x, i1(x). I1(x) is defined for all values of x, but large absolute values of x may cause the result to be larger in magnitude than MAXREAL, the largest value representable.
Errors
FNS_i1 causes an HTBasic error if its argument is not of type REAL or if the result would be larger than MAXREAL.
i1(x)
 See Also S_i0, S_im1, S_in, S_k1
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