2012/12/20 Erich Rast <er...@snafu.de>: > Hi, > > For compatibility I need modular arithmetic for some > standard numeric types such as signed 64bit integer, unsigned 64bit > integer, signed 32 bit integer, and so on. Preferably it shouldn't be > very slow. > > What's the best way to get this? Is there a package for this already?
For general modular arithmetic, you can do this using a daily build: #lang racket (require math) (with-modulus 5 (list (mod 7) (mod+ 3 3) (mod* 3 7) (modexpt 3 2))) The output is: '(2 1 1 4) See documentation here: http://pre.racket-lang.org/docs/html/math/number-theory.html?q=math#(part._congruences) -- Jens Axel Søgaard ____________________ Racket Users list: http://lists.racket-lang.org/users
