You can use vectorz-clj if you want fast double[] vector and matrix operations on the JVM.
https://github.com/mikera/vectorz-clj It's basically a comprehensive wrapper over almost everything you might possibly want to do with Java double[] arrays, but wrapped up behind the core.matrix API so that you don't have to fiddle with primitive Java array access. On Sunday, 21 July 2013 20:15:57 UTC+1, Alex Fowler wrote: > > Hmmm, true about proxies.. as for hiphip - I did not use it yet, but I > thought that it may be useful for fast array operations, sorry confused the > posts :) I gonna try it sometime I think.. and I think that it has no > built-in matrix ops, but there was a library somewhere that did matrix ops.. > > On Saturday, July 20, 2013 10:05:30 PM UTC+4, Brian Craft wrote: >> >> I've been looking at hiphip, though it's not clear to me how it's related >> to h2 user functions. ;) >> >> It wasn't immediately clear to me if hiphip handles multidimensional >> matix operations. >> >> On Saturday, July 20, 2013 9:32:50 AM UTC-7, Alex Fowler wrote: >>> >>> BTW, take a look >>> http://blog.getprismatic.com/blog/2013/7/10/introducing-hiphip-array-fast-and-flexible-numerical-computation-in-clojure >>> >>> суббота, 20 июля 2013 г., 17:42:36 UTC+4 пользователь Brian Craft >>> написал: >>>> >>>> I'm trying to write a user function for h2. I think that means I need >>>> gen-class, but I'm extremely fuzzy on how java class loading works. >>>> Perhaps >>>> my question is moot, because I just ran across this obscure note in a >>>> gen-class example: >>>> >>>> ;; declare only new methods, not superclass methods >>>> >>>> If I'm implementing an interface in h2, does that mean I shouldn't >>>> declare the methods? I also found a stackoverflow answer that >>>> suggested something like >>>> >>>> ["[Ljava.lang.Integer;"] >>>> >>>> which looks like black magic, and I can't find this in the docs >>>> anywhere. >>>> >>>> On Saturday, July 20, 2013 2:39:06 AM UTC-7, Alex Fowler wrote: >>>>> >>>>> Some questions to clarify things up: >>>>> >>>>> Do you mean - how do you create that type of value or how do you >>>>> generatte a method that accepts that very type? >>>>> >>>>> Are you sure you need to use gen-class and not proxy or reify? >>>>> >>>>> суббота, 20 июля 2013 г., 7:28:03 UTC+4 пользователь Brian Craft >>>>> написал: >>>>>> >>>>>> For implementing a method with this signature >>>>>> >>>>>> int getType(int[] inputTypes) >>>>>> >>>>>> How would I declare inputTypes in gen-class? >>>>>> >>>>> -- -- 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/groups/opt_out.
