[racket] FW: q about code for partitions

Great work, Jens. I am glad my approach as been adopted (and much improved
without deviating from the original idea of simpler recurrence). When can we
expect it in the next nightly build?

Thanks, Jos

> -----Original Message-----
> From: jensaxelsoegaard at gmail.com 
> [mailto:jensaxelsoegaard at gmail.com] On Behalf Of Jens Axel Søgaard
> Sent: domingo, 29 de junio de 2014 12:48
> To: Matthew Flatt
> Cc: Jos Koot; Racket Users List
> Subject: Re: [racket] FW: q about code for partitions
> 
> I have made a new vector version using zero? instead of exact-zero?.
> 
> To give users a chance to remove the cache after doing 
> partitions calculations,
> I have added set-partitions-cache.
> 
>    Code:
>    
> https://github.com/soegaard/racket/blob/patch-14/pkgs/math-pkg
s/math-lib/math/private/number-theory/partitions.rkt
> 
>    Discussion:
>     https://github.com/plt/racket/pull/697
> 
> /Jens Axel
> 
> 
> 2014-06-29 12:44 GMT+02:00 Jens Axel Søgaard <jensaxel at soegaard.net>:
> > 2014-06-29 8:47 GMT+02:00 Matthew Flatt <mflatt at cs.utah.edu>:
> >> It looks like "partitions2.rkt" ends up calling a contract-wrapped
> >> variant of `exact-zero?`.
> >
> > That explains why Eric saw an improvement, when the used #f 
> instead of
> > 0 as the not-cached-yet value.
> >
> > /Jens Axel
> 
> 
> 
> -- 
> --
> Jens Axel Søgaard