R: Coupling functions

Coupling {gsl} | R Documentation

## Coupling functions

### Description

Coupling functions as per the Gnu Scientific Library, reference manual section 7.8. These functions are declared in header file `gsl_sf_coupling.h`

### Usage

    coupling_3j(two_ja, two_jb, two_jc, two_ma, two_mb, two_mc, give=FALSE, strict=TRUE)
    coupling_6j(two_ja, two_jb, two_jc, two_jd, two_je, two_jf, give=FALSE, strict=TRUE)
    coupling_9j(two_ja, two_jb, two_jc, two_jd, two_je, two_jf,
          two_jg, two_jh, two_ji, give=FALSE, strict=TRUE)

### Arguments

`two_ja, two_jb, two_jc, two_jd, two_je, two_jf, two_jg, two_jh, two_ji, two_ma, two_mb, two_mc` | Arguments as per the GSL manual
`give` | Boolean with `TRUE` meaning to return a list of three items: the value, an estimate of the error, and a status number
`strict` | Boolean, with `TRUE` meaning to return `NaN` if status is an error

### Author(s)

Robin K. S. Hankin

### References

http://www.gnu.org/software/gsl

### Examples

    coupling_3j(1,2,3,4,5,6)
    coupling_6j(1,2,3,4,5,6)
    coupling_9j(1,2,3,4,5,6,7,8,9)

[Package gsl version 1.9-10.3 Index]