BESSEL_J1 intrinsic function

Standard: F77 F90 F95 F2003 F2008 F2018 Example program



X : Real;

Result : Same type and kind as X.


The value of the result is an approximation to the Bessel function of the 1st kind, order 1, at the point X. Like many intrinsic functions, this is elemental; the result has the same shape as X, with the operation being applied elementwise.


BESSEL_J0 intrinsic function, BESSEL_JN intrinsic function, BESSEL_Y0 intrinsic function, BESSEL_Y1 intrinsic function, BESSEL_YN intrinsic function