My posts don't seem to be getting through to the pmc list, so I will respond again
here.
Unfortunately, some people (e.g. www.nr.com) think that they can in fact protect
numerical algorithms. See the FAQ page at that site. For this reason, we have taken
great pains to avoid copyrighted algorithms (especially NR) in [math]. Hopefully, my
posts to licensing@ will eventually make it through moderation and we will get a
definitive legal response. Until then, we need to follow the standard procedure of
removing code that has infringement potential until we have settled the issue.
Phil
-----Original Message-----
From: Inger, Matthew [mailto:[EMAIL PROTECTED]
Sent: Fri 5/7/2004 9:43 AM
To: 'Jakarta Commons Developers List'; Jakarta Project Management Committee
List
Cc:
Subject: RE: Fwd: Removing files completely from cvs
I agree, copyrights apply to the published works themselves
and/or any source code. Algorithms are not covered by copyrights,
but rather by patents, if i am correct. If someone had taken the
source code, and used it, i could see an issue. Provided no source
code was copied, I don't see any problem (based on my assumptions
above).
-----Original Message-----
From: Mark R. Diggory [mailto:[EMAIL PROTECTED]
Sent: Friday, May 07, 2004 8:29 AM
To: Jakarta Project Management Committee List; Jakarta Commons
Developers List
Subject: Re: Fwd: Removing files completely from cvs
Yes, I see no reason reason to remove them if its the algorithm, and not
any code that was cited.
-Mark
Noel J. Bergman wrote:
>
http://nagoya.apache.org/eyebrowse/[EMAIL PROTECTED]
> he.org&msgId=1639175
>
>
>>I am removing the files as we investigate. I will post updates here.
>
>
> I'm not seeing the problem. The NormalCDFPreciseAlgorithm source code
says:
>
> Implements Cody algorithm to calculate CDF (cumulative distribution
> function) for Normal (Gauss) distribution. Provided implementation
> is adapted from http://www.r-project.org/ function pnorm(...)
>
> References:
> Cody's algorithm: Cody, W. D. (1993).
> http://www.acm.org/toms/cgi-bin/TOMSbibget?Cody:1993:ASE
> ALGORITHM 715: SPECFUN - A Portable FORTRAN Package of
> Special Function Routines and Test Drivers".
> ACM Transactions on Mathematical Software. 19, 22-32</a>.
> FORTRAN code is available at href="http://www.netlib.org/toms/715
>
> Neither of the two referenced packages is written in Java. The code uses
> algorithms, but did not copy code. Similarly for NormalCDFFastAlgorithm,
> which says:
>
> Implements Hill algorithm to calculate CDF (cumulative distribution
> function) for Normal (Gauss) distribution.
>
> References:
> I. D. Hill, Applied Statistics, http://lib.stat.cmu.edu/apstat/66
>
> Again, algorithms and code are two different things. So what's the
problem?
> IANAL, but I don't see a reason to remove these files.
>
> --- Noel
>
--
Mark Diggory
Software Developer
Harvard MIT Data Center
http://www.hmdc.harvard.edu
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