SUBROUTINES
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This page contains writeups of the PHYSTM (fortran) libray. Fortran sources are
available upon request.
1. Matrix operations
- MARDI
Standard eigenvalue problem
- AMBLE
Generalized eigenvalue problem
- MATIN / MINV
Matrix inversion (real)
- CMATIN / CMINV
Matrix inversion (complex)
2. Special funtions
- BESSIK
Modified Bessel functions of first kind In(x) and of the second kind Kn(x) with
n positive integer (Abramowitz and Stegun, p.374)
- BESSJ
Bessel functions of first kind Jn(x) and of the second kind Yn(x) with n positive
integer (Abramowitz and Stegun, p.358).
- BESSPH
Spherical Bessel functions (Abramowitz and Stegun, p.443).
- COUFRA
Coulomb wave functions
- WITT
Witthaker functions
- HARSPH
Legendre polynomials and spherical harmonics
- HANSPH
Spherical Hankel functions
3. Quantum mechanics
- CLEBS
Clebsch-Gordan coefficients
- SIXJ
6j coefficients
- NEUFJ
9j coefficients
- NUM1L
Bound states of a given potential (single-channel, real)
- DEPHASE
Phase shifts in the potential model (single-channel, real)
- COLIS
Collision matrix for multichannel scattering
- NUMFOX
Bound states for multichannel problems
4. General usage
- SPLIN5 / INSPL5
5th order spline interpolation
5. Other libraries (available on PNPTPM): the writeups
of other common libraries can be found on external sites:
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