Real 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=FNBer(X)
Description
FNBerreturns the value of the real Kelvin function of the first kind of the valuex. Although ber(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 ber3(x). In this notation, the functionFNBerreturns the value of ber0(x).
Errors
FNBercauses an HTBasic error if its argument is not of type REAL or if the value returned would be larger in magnitude than MAXREAL.
