bessel.3f

<B>Digital的Unix操作系统VAX 4.2源码</B>

.\" SCCSID: @(#)bessel.3f	8.1	9/11/90
.TH bessel 3f VAX "" Unsupported
.SH Name
bessel functions \- of two kinds for integer orders
.SH Syntax
.B function besj0 (x)
.sp 1
.B function besj1 (x)
.sp 1
.B function besjn (n, x)
.sp 1
.B function besy0 (x)
.sp 1
.B function besy1 (x)
.sp 1
.B function besyn (n, x)
.sp 1
.B double precision function dbesj0 (x)
.br
.B double precision x
.sp 1
.B double precision function dbesj1 (x)
.br
.B double precision x
.sp 1
.B double precision function dbesjn (n, x)
.br
.B double precision x
.sp 1
.B double precision function dbesy0 (x)
.br
.B double precision x
.sp 1
.B double precision function dbesy1 (x)
.br
.B double precision x
.sp 1
.B double precision function dbesyn (n, x)
.br
.B double precision x
.SH Description
.NXR "bessel keyword (FORTRAN)"
.NXR "besj0 subroutine (FORTRAN)"
.NXR "besj1 subroutine (FORTRAN)"
.NXR "besjn subroutine (FORTRAN)"
.NXR "besy0 subroutine (FORTRAN)"
.NXR "besy1 subroutine (FORTRAN)"
.NXR "besyn subroutine (FORTRAN)"
.NXR "dbesj0 subroutine (FORTRAN)"
.NXR "dbesj1 subroutine (FORTRAN)"
.NXR "dbesjn subroutine (FORTRAN)"
.NXR "dbesy0 subroutine (FORTRAN)"
.NXR "dbesy1 subroutine (FORTRAN)"
.NXR "dbesyn subroutine (FORTRAN)"
.NXR "Bessel functions (FORTRAN)
These functions calculate Bessel functions of the first and second kinds
for real arguments and integer orders.
.SH Diagnostics
Negative arguments cause \fIbesy0, besy1,\fR and \fIbesyn\fR to return a huge
negative value. The system error code will be set to EDOM (33).
.SH Files
.ie \nM /usr/ucb/lib/libF77.a
.el /usr/lib/libF77.a
.SH See Also
bessel(3m), perror(3f)