Kelvin functions

Syntax: | `y = BER(x) y = BEI(x) y = KER(x) y = KEI(x)`

Kelvin functions occur in electrical engineering.

Kelvin functions of the first kind

The Kelvin functions of the first kind, order 0:

and where is Bessel's function of the first kind, order 0.

Kelvin functions of the second kind

Kelvin functions of the second kind, order 0, for non-negative .

and where is the modified Bessel function of the second kind, order 0.