インテル® Fortran コンパイラー 14.0 ユーザー・リファレンス・ガイド

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.

結果

The result type and kind is 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.


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