-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 The best way to build a complex arithmetic package is probably to work atop `clojure.algo.generic`. I've done a pair of libraries (https://github.com/arrdem/imprecise, https://github.com/arrdem/meajure) based around extending algo.generic with custom datatypes and they've both worked out well.
Clojure in general seems pretty loath to package "traditional" numerics facilities... note that we don't even have a built in square root operator and the common practice is to use java.lang.Math through interop so I wouldn't go holding your breath over adding irrational numbers to the language core. Also clojure.contrib is abandoned and deprecated in favor of "real" community maintained standalone libraries. The most likely place for an irrational type is probably either a user library like both of the above or possibly algo.generic itself. Reid On 08/15/2014 10:24 AM, Maik Schünemann wrote: > Hi, > is there a recommended way to do complex arithmetic in clojure ? > I am interested to see clojure going forward for scientific computing purposes. > There is already considerable effort going on with core.matrix, incanter, expresso etc. > But something thad is oddly lacking is support for complex numbers. For some areas, this is > a show stopper and it is very basic stuff in other languages and systems: > - common-lisp, python etc all have a standard complex type as part of the language/standard library > - see language support here http://en.wikipedia.org/wiki/Complex_data_type > > In Java, there are multiple incompatible complex number classes and I don't want that incompatibilities > in clojure libraries that provide complex number manipulation. > > In my opinion we should strive as a community for a standard complex number datatype, that is agreed on by clojure libraries, > and plays nicely with clojures other numeric types. > Ideally, this would be provided as part of clojure.contrib or even clojure itself - like rationals are! > > > > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to the Google Groups "Clojure" group. > To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com <mailto:clojure+unsubscr...@googlegroups.com>. > For more options, visit https://groups.google.com/d/optout. -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBAgAGBQJT7jysAAoJELjHpJOzPfTlUqoP/3UGoIusWhK+/0yzYvqCHsPK QzU7criJGsNCfP8h0H7kClwJh7gIZHJlnBDMVHh7eP6VDPlnunTv7nYbFCPMYUys SiM0dhW94EqEKUtl0gcIUoFfhDBeAPhgoi02/Lm0w51CcarhEnstVFVnUOLJPbsB sTJuEC1ZigBtJz8pwBzGQnBYIRDaSONSxAEoV8aDmXinKBh+mPZKDRkE2emHsxDi kSkMmDYicmc/2chFnjdbhSvJQajqoKKZvxuHAVboKKkWqowgHbHaB3ybsoZs/GT9 NYZEBVfEJWrgvQvgQsZNnuc2esd4f86JJp/QAyCvIzofsoNQbGBtPzbXBLkq7JYF Me3JBwI1F9N221ZfTyRIXjRzc2P6cZdRcMAetsRgw2tSl94HVuHp2VGzaeqGlsR/ b7tsv06o2jTlNbaH+o1lisAQcs7pTJ1SZO1FZmCBoY1/b7f3MVa//hAK5pHa/tMH +bAVZaAtAe+K3JjCokHwN7MX1gfVUNyIxD9kj/jlnrq+Xmvg8U7EA16wH+NDEI0j jDXUkcTYfdM/dR7NV5Jvzwgd9A7Gm+2If6xN4Kx1ZviJk+XP3tYWx3FoCLungjaz FujqwSChdDQ3Qw9k9uJ8zUR+e+9EsOsB86CmX/BmQCifcEpp1KlTUzFaR1XR3Gbg VS5qG9H32gMMXpXSU02M =cssb -----END PGP SIGNATURE----- -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
