Spherical Bessel function of the second kind, order one.
Loading LOADSUB ALL FROM "BESMS.HTS"
or LOADSUB FROM "MATHLIB.HTS"
Usage REAL X,Y
Y=FNS_y1(X)
Description
FNS_y1returns the value of the spherical Bessel function of the second kind and order one ofx,y1(x).Y1(x) is defined for all values ofxexcept zero, but values ofxnear zero may cause the result to be larger in magnitude than MAXREAL, the largest value representable.
Errors
FNS_y1causes an HTBasic error if its argument is not of type REAL, ifxis zero, or if the result would be larger in magnitude than MAXREAL.