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SpecialFuncs.Besj Function

Bessel function of the first kind Jn(Z) (Real argument).

Pascal
function Besj(NU: double; A: double): TCplx; overload;
Parameters 
Description 
NU 
Defines the order of the Bessel function of the first kind Jn. 
Defines real value for which Jn(A) should be evaluated. 

the Bessel function of the first kind Jn(Z) with NU parameter describing order of Bessel function.

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