# Fortran Wiki bessel_y1

## Description

bessel_y1(x) computes the Bessel function of the second kind of order 1 of x.

## Standard

Fortran 2008 and later

## Class

Elemental function

## Syntax

result = bessel_y1(x)

## Arguments

• x - The type shall be real.

## Return value

The return value is real. It has the same kind as x.

## Example

program test_besy1
real(8) :: x = 1.0_8
x = bessel_y1(x)
end program test_besy1