[Haskell-cafe] matrix computations based on the GSL
lemming at henning-thielemann.de
Fri Jul 8 09:54:20 EDT 2005
On Fri, 8 Jul 2005, Keean Schupke wrote:
> Henning Thielemann wrote:
> >My objections to making everything a matrix were the objections I sketched
> >for MatLab.
> >The example, again: If you write some common expression like
> >transpose x * a * x
> Which just goes to show why haskell limits the '*' operator to
> multiplying the same types. Keep this to Matrix-times-Matrix operators.
Btw. the interface file by Alberto gives you uniform usage of an operator
symbol (<>) while retaining full type safety by functional dependencies.
This is a good solution, I think.
> I feel using separate types for vectors and scalars just overcomplicates
I'm excited if your code gets swamped by conversions between Double and
Matrix then. I really plead for representing everything with strings, this
is the most simple and most flexible solution! :-]
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