Intel® Fortran Compiler Classic and Intel® Fortran Compiler Developer Guide and Reference
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Visible to Intel only — GUID: GUID-147F4D73-E72B-4D4F-A5B8-3FE86AE66AE8
BESSEL_Y1
Elemental Intrinsic Function (Generic): Computes a Bessel function of the second kind, order 1.
result = BESSEL_Y1 (x)
x |
(Input) Must be of type real with a value greater than zero. |
The result type and kind are the same as x.
The result has a value equal to a processor-dependent approximation to the Bessel function of the second kind and order 1 of x.
BESSEL_Y1 (1.0) has the approximate value -0.781.