.TRANSFORM.Math.besselJ

Information

Returns the Bessel function of the first kind, J_n(x).

See http://mathworld.wolfram.com/BesselFunctionoftheFirstKind.html for more details.

Interface

function besselJ
  extends TRANSFORM.Icons.Function;
  import gamma = TRANSFORM.Math.gamma_Lanczos;
  import TRANSFORM.Math.factorial;
  input Real k "Bessel order";
  input Real x "Value in Jk(x)";
  input Real tolerance = 1e-6 "tolerance for infinite sum termination";
  output Real Jk "Bessel function Jk(x) (order k) value";
end besselJ;