Imaginary Kelvin function of the first kind of a real argument.
Loading LOADSUB ALL FROM "KELVIN.HTS"
or LOADSUB FROM "MATHLIB.HTS"
Usage REAL X,Y
Y=FNBei(X)
Description
FNBeireturns the value of the imaginary Kelvin function of the first kind of the valuex. Although bei(x) is defined for all real values ofx, large positive or negative values ofxmay produce results greater in magnitude than MAXREAL, the largest value representable. Note that sometimes Kelvin functions are written with an order, as in bei3(x). In this notation, the functionFNBeireturns the value of bei0(x).
Errors
FNBeicauses an HTBasic error if its argument is not of type REAL or if the value returned would be larger in magnitude than MAXREAL.
