toms597, a FORTRAN77 code which evaluates Bessel functions I of real, non-integer order. this is a version of ACM TOMS Algorithm 597;
The computer code and data files made available on this web page are distributed under the GNU LGPL license.
toms597 is available in a FORTRAN77 version.
fn, a FORTRAN77 code which approximates elementary and special functions using Chebyshev polynomials; functions include Airy, Bessel I, J, K and Y, beta, confluent hypergeometric, error, gamma, log gamma, Pochhammer, Spence; integrals include hyperbolic cosine, cosine, Dawson, exponential, logarithmic, hyperbolic sine, sine; by Wayne Fullerton.
specfun, a FORTRAN77 code which computes special functions, including Bessel I, J, K and Y functions, and the Dawson, E1, EI, Erf, Gamma, log Gamma, Psi/Digamma functions, by William Cody and Laura Stoltz;
special_functions, a FORTRAN77 code which computes the Beta, Error, Gamma, Lambda, Psi functions, the Airy, Bessel I, J, K and Y, Hankel, Jacobian elliptic, Kelvin, Mathieu, Struve functions, spheroidal angular functions, parabolic cylinder functions, hypergeometric functions, the Bernoulli and Euler numbers, the Hermite, Laguerre and Legendre polynomials, the cosine, elliptic, exponential, Fresnel and sine integrals, by Shanjie Zhang, Jianming Jin;
toms511, a FORTRAN77 code which can evaluate Bessel I or J functions of real (non integer) order, This is a version of ACM TOMS Algorithm 515;
toms644, a FORTRAN77 code which evaluates the Bessel I, J, K, Y functions, the Airy functions Ai and Bi, and the Hankel function, for complex argument and real order. This is a version of ACM TOMS algorithm 644.
toms715, a FORTRAN77 code which evaluates special functions, including the Bessel I, J, K, and Y functions of order 0, of order 1, and of any real order, Dawson's integral, the error function, exponential integrals, the gamma function, the normal distribution function, the psi function. This is a version of ACM TOMS algorithm 715.