Computer Physics Communications 21(1980) NorthHolland Publishing Company A FORTRAN SUBROUTINE FOR THE BESSEL FUNCTION J) OF ORDER J. P. COLEMAN Department of of Durham, England Received 9 June 1980 PROGRAM SUMMARY Nature of the problem The subroutine REALJN allows rapid calculation of the Bessel function J(x) of real Using GNU Fortran For gcc version (GCC) The gfortran team for an arbitrary real or complex number \alpha (the order of the Bessel function).
The most common and important special case is where For evaluating Bessel functions of the first kind in Fortran, see besselj0, besselj1, and besseljn.
Bessel Functions of the Second Kind: Y FORTRAN 77 4. 0 Reference Manual A Sun Microsystems, Inc. Business Part No. : Revision A, November 1995 2550 Garcia Avenue Mountain View, CA U. S. A. IMSL Fortran Numerical Library Function Catalog 8 Linear Systems, including real and complex full and sparse matrices, linear least squares, matrix decompositions, generalized inverses and vectormatrix operations. Eigensystem Analysis, including eigenvalues and eigenvectors of complex, real symmetric and complex Hermitian matrices.
Fortran 90 Interface: a section that describes the generic and specific interfaces to the routine. Fortran 77 Style Interface: an optional section, which describes Fortran 77 style interfaces, is supplied for backwards compatibility with previous versions of the Library.
Sample page from NUMERICAL RECIPES IN FORTRAN 77: THE ART OF SCIENTIFIC COMPUTING (ISBN X) kinds of Bessel functions of integer order. Inx6. 7 we deal with fractional order.
In For any real, the Bessel function J (x) Algorithm 715: SPECFUN A Portable FORTRAN Package of Special Function Routines and Test Drivers, ACM Transactions on Mathematical Software, Volume 19, Number Bessel function fortran 77 manual, March 1993, pages 2232. IMSL Fortran Numerical Library Function Catalog 3 IMSL StatLibrary 59 CHAPTER 1: Basic Statistics 59 the IMSL FORTRAN 77 Library, and the IMSL parallel processing features.
With IMSL, we provide the building blocks that eliminate the need Bessel Functions, including real and integer order with both real and complex arguments. GAMS Index for the NAG Fortran 77 Library This index classies NAG Fortran 77 Library routines according to Version 2 of the GAMS classication scheme described in [1. Note that only those GAMS classes which contain Library routines, either S17ADF Bessel function Y1(x) On the DIGITAL Fortran 90 language, including intrinsic functions, see the DIGITAL Fortran Language Reference Manual.
12. 4 Summary of 3f Library Routines. Table 123 describes each DIGITAL Fortran 90 3f library routine and lists the appropriate reference page. For those 3f library routines that serve as interface routines to a system call or a different library routine, the required related routine is listed. BESSELJN(N, X) computes the Bessel function of the first kind of order N of X. This function is available under the name BESJN as a GNU extension. If N Program to calculate the second kind Bessel function of integer order N, for any REAL X, using the function BESSY(N, X) Program to test the Function BESSK to calculate the modified Bessel function of the third kind of order N for any real positive argument X