Re: Burning more bridges (mostly numeric ones)

agreed, hence my earlier remarks :) On Sat, Mar 22, 2014 at 5:09 PM, wren romano wrote:

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On #3: The library numeric-prelude achieves many of these goals (Plus a bunch more). If the experiences of using numeric-prelude are positive

On Fri, Mar 21, 2014 at 1:08 PM, Corey O'Connor wrote: then

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using this or a subset of this as the standard numeric prelude might resolve these goals easily.

http://hackage.haskell.org/package/numeric-prelude

One of my major complaints against numeric-prelude is the same as my major complaint against every other such project I've seen put forward: they completely ignore semirings and related structures.

Semirings are utterly ubiquitous and this insistence that every notion of addition comes equipped with subtraction is ridiculous. In my work I deal with semirings and semimodules on a daily basis, whereas rings/modules show up far less often, let alone fields/vectorspaces. When not dealing with semirings, the other structures I work with are similarly general (e.g., semigroups, quasigroups,...). But this entire area of algebra is completely overlooked by those libraries which start at abelian groups and then run headlong for normed Euclidean vector spaces.

My main complaint against the Num class is that it already assumes too much structure. So developing the hierarchy even further up than Num does little to help me.

-- Live well, ~wren _______________________________________________ Libraries mailing list Libraries@haskell.org http://www.haskell.org/mailman/listinfo/libraries