The Kelvin functions of the first kind are the Kelvin functions bei and ber defined by
 |
where 
is a Bessel function of the first kind.
Kelvin Function of the First Kind
See also
Bei, Ber, Kelvin FunctionsExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Kelvin Function of the First Kind." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/KelvinFunctionoftheFirstKind.html