 |
where 
is a Bessel function of the first kind.
Bessel's First Integral
See also
Bessel Function of the First KindExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Bessel's First Integral." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/BesselsFirstIntegral.html