[racket-users] nj-symbols

2019-06-13 Thread Jos Koot
To whom may be interested, Repository https://github.com/joskoot/nj-symbols Provides procedures for the exact computation of the squares of 3j-, 6j- and 9j-symbols. For documentation a scribble module is included. Jos -- You received this message because you are subscribed to the Google Groups

[racket-users] nj-symbols and clebsch-gordon coefficients

2016-08-04 Thread Jos Koot
Hi IIRC all nj-symbols and Clebsch-Gordon coefficients are plus or minus the square root of a positive rational number. IIAC this means that a nj-symbol or Clebsch-Gordon coefficient can be represented exactly by a sign and its square. Question: is this correct? If so, is there already some code