Subject: Re: [boost] boost.math
From: rodrigue pons (pons.rodrigue_at_[hidden])
Date: 2009-10-29 06:18:53
Thank you very much for ours replies.
I had a look on these libs, but they don't fit to my context because i
need the logarithm(s) function(s), and these libs don't implement
it/them. And i don't have time nor skill to do it myself.
I tried also MAPM, that implement logaritmic functions, but there is
others problems with this lib. But i'm going to resolve them.
Thank you all.
2009/10/28 Paul A. Bristow <pbristow_at_[hidden]>:
>> -----Original Message-----
>> From: boost-bounces_at_[hidden] [mailto:boost-bounces_at_[hidden]] On
> Behalf Of
>> Sent: Wednesday, October 28, 2009 2:03 PM
>> To: boost_at_[hidden]
>> Subject: Re: [boost] boost.math
>> Correct me if I am wrong on this, but the use of NTL::RR or MPFR
>> automatically forces you to comply with the GPL, meaning that they are
>> practically worthless for commercial use.
> I believe you are right about using NTL RR (we have asked the author of NTL to
> change the license but without success) but previous discussions seemed to
> conclude that GMP http://gmplib.org/ might be used (because is it LGPL not GPL)
> and discouraged anyone from writing Boost's Own Version of big integer (and big
> float) libraries.
> http://en.wikipedia.org/wiki/LGPL says (apart from other matters):
> "Whether a work that uses an LGPL program is a derivative work or not is a legal
> IANAL and I fear that many lawyers would take the view that the situation causes
> too much FUD to be acceptable.
> This all seems a regrettable waste of the massive efforts of the GMP team - "the
> fastest bignum library on the planet!".
> Paul A. Bristow
> Prizet Farmhouse
> Kendal, UK LA8 8AB
> +44 1539 561830, mobile +44 7714330204
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