BESSEL_J1(3f)

DESCRIPTION
BESSEL_J1(X) computes the Bessel function of the first kind of order 1 of X. This function is available under the name BESJ1 as a GNU extension.

STANDARD
Fortran 2008

CLASS
Elemental function

SYNTAX
RESULT = BESSEL_J1(X)

ARGUMENTS

X The type shall be REAL.

RETURN VALUE
The return value is of type REAL and lies in the range - 0.5818... <=q Bessel (0,x) <=q 0.5818 . It has the same kind as X.

EXAMPLE
          program test_besj1
            real(8) :: x = 1.0_8
            x = bessel_j1(x)
          end program test_besj1

SPECIFIC NAMES

Name Argument Return type Standard DBESJ1(X) REAL(8) X REAL(8) GNU extension

AUTHOR

This information was taken from the GFortran documentation (https://gcc.gnu.org/onlinedocs/gcc-5.3.0/gfortran/) and converted to a manpage by AstroFloyd (http://astrofloyd.org).