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.

  Join function
  Laguerre polynomials