On Sat, 8 Aug 2009, Paul Sargent wrote:
First post to the cafe, so "Hello everybody!".
Hope this is reasonable subject matter and not too long.
I've been working on some algorithms that involved taking the n-th root of
complex numbers.
In my code I've implemented this as raising the complex number ('z') to 1/n
using the (**)
operator. Obviously, there are n roots, but I only need one of them so this is
fine.
I have written something on that topic:
http://haskell.org/haskellwiki/Power_function
I think the problem cannot be fully solved, especially not within the
Haskell 98 numeric type classes. There is no satisfying implementation of
(**) even for Float and Double.
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