Hendrik, > Is it conceivable that you need multiple-precision fixed-point?
If would be OK in terms of numerical accuracy, but I feel that it would not be good in terms of performance. See the description for Neil Toronto's interface to MPFR: https://github.com/ntoronto/racket/blob/master/collects/math/scribblings/math-bigfloat.scrbl "Bigfloat functions can be hundreds to thousands of times slower than flonum functions." Best regards, Dmitry ____________________ Racket Users list: http://lists.racket-lang.org/users
