Kei

Complex Kelvin function of the second kind of a real argument.

Loading LOADSUB ALL FROM "KELVIN.HTS"

or LOADSUB FROM "MATHLIB.HTS"

Usage REAL X,Y

Y=FNKei(X)

Description

FNKei returns the value of the imaginary Kelvin function of the second kind of the value x. Although kei(x) is defined for all values of x except zero, values of x near zero may produce results greater than MAXREAL, the largest value representable. Note that sometimes Kelvin functions are written with an order, as in kei3(x). In this notation, the function FNKei returns the value of kei0(x).

Errors

FNKei causes an HTBasic error if its argument is not of type REAL, if x is negative or zero, or if the value returned would be larger than MAXREAL.

See Also

Ke, Ker

kei(x)